Missing Side Length
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Pythagorean Theorem Worksheet | Math Game | Math Challenge | Printable & Digital
Use this challenge to practice finding the missing side lengths in right triangles by using the Pythagorean Theorem. You are participating in a challenge. Help the dog find the shortest path and collect as many treats as possible on the way to his bowl. Each kind of treat is worth a different number of points. This resource includes:- The editable digital version in Google Slides™. - The editable PowerPoint™ version. - The printable version in PDF (color) + answer key + example of a completed
7th - 9th
Geometry, Math, Measurement
PUZZLE MATH: Special Right Triangles
In this one-page assignment students find missing side lengths and angle measures of special right triangles. Every possible permutation from given to missing side is used, and problems include ones where students are given integers that they must both multiply and divide by radical expressions. When applicable students must rationalize the denominator. Correct answers decode a secret message, providing immediate feedback for the learner as this free math worksheet is self-checking. If you enjoy
10th - 12th, Higher Education
Geometry, Other (Math), PreCalculus
Mathematics Exercise Series Thales’ Theorem
The worksheet features six progressively challenging exercises that cover various geometric configurations: Triangle Proportionality (Exercises 1, 2, 3, & 6): Students calculate missing side lengths and prove lines are parallel using both the basic theorem and its converse.Trapezoids and Tangents (Exercises 4 & 5): The series extends the theorem to complex figures like trapezoids and circles with common external tangents, requiring higher-level algebraic manipulation.Step-by-Step Solutions: A co
7th - 9th
Algebra, Geometry, Math Test Prep
Missing Side Perimeter Practice (3.MD.8) | No-Prep Worksheets | 3rd Grade Math
Missing Side of Rectangles – Perimeter Practice Worksheets Help your students master 3.MD.8 with this no-prep worksheet set! Students practice finding the missing side length of rectangles when given the perimeter and one side. Students will use division and subtraction to determine the unknown side and build confidence with multi-step problem solving. What’s Included: 20 practice problems per worksheet Multiple worksheet versions for repeated practice Missing side answers are 12 units or les
3rd - 4th
Basic Operations, Geometry, Measurement
CCSS
3.MD.D.8
Proportional Reasoning Task Cards Corresponding Sides Geometry Ratio
This is a set of 16 task cards that present two similar rectangles with some sides labeled. Students must use proportional reasoning to find the missing length. All sides are labeled in whole number units and can be solved with mental math. Shapes on the first cards are presented in similar orientation and on later cards are rotated. Students must find both missing sides on the enlarged shape and missing sides on the smaller shape using their knowledge of corresponding sides.
This is an 8-pa
5th - 7th
Geometry, Math
Pythagorean Theorem & Classify Triangles by Angles & Sides
Pythagorean Theorem & Trigonometry Challenge: Real-World Applications Grades: 8th–11th Concepts Covered: 1. Converse of the Pythagorean Theorem - Determine if triangles are acute, right, or obtuse using side lengths. - Real-world example: "A triangular garden has sides 7 m, 24 m, and 25 m. Is it a right triangle?" 2. Classify Triangles by Angles & Sides - Identify , acute, obtuse, or right triangles. - Example: "A triangle has angles 30°, 60°, and 90°. Classify it by angles and
8th - 10th
Algebra 2, Geometry, Graphing
CCSS
8.G.A.1b
, 8.G.B.6
, 8.G.B.7
+2
Introduction to Trigonometry Guided Notes and Practice | SOHCAHTOA
Introduce your Geometry students to right triangle trigonometry with this clear, scaffolded guided notes and practice resource. Students learn how to identify opposite, adjacent, and hypotenuse, choose the correct trigonometric ratio, and solve for missing side lengths and angles using SOHCAHTOA. This resource gradually builds understanding through visual explanations, guided examples, and practice problems so students can confidently apply trig ratios to solve right triangles. Students will:Lab
8th - 12th
Algebra, Geometry, Other (Math)
CCSS
8.G.B.6
, 8.G.B.7
, HSG-SRT.C.8
Pythagorean Theorem Guided Notes and Practice | Geometry Right Triangles
Help your Geometry students build confidence with the Pythagorean Theorem and its converse using this clear, scaffolded guided notes and practice resource. This 2-page worksheet is designed to support students as they learn how to find missing side lengths in right triangles and determine whether a triangle is a right triangle using the converse. The pages include an introduction, visual formula support, worked examples, application problems, and reasoning-based practice. This resource works w
8th - 12th
Algebra, Geometry, Other (Math)
CCSS
8.G.B.6
, 8.G.B.7
, HSG-SRT.C.8
Missing Sides Irregular Shapes Area & Perimeter 3rd & 4th Grade Math Enrichment
Are you looking for a fun way to challenge your early finishers with area and perimeter? These irregular shape puzzles with missing sides are perfect for high-achieving students who are ready to take their understanding of shapes and measurement a step further. Students become math detectives as they work to figure out missing side lengths using given side clues. The problems feel more like puzzles than worksheets, which keeps learning engaging and meaningful. As students problem-solve their way
3rd - 4th
Geometry, Measurement
CCSS
3.MD.C.5
, 3.MD.C.5a
, 3.MD.C.5b
+11
Construction Site Math Perimeter & Area PBL 3rd Grade
Description Make practicing area and perimeter fun and engaging with this hands-on Construction Site Math activity! Students become Junior Construction Engineers as they rotate through problem-solving stations to design building lots, calculate measurements, and solve real-world construction challenges. This resource includes 4 construction job tasks that give students meaningful practice with finding perimeter, determining missing side lengths, and calculating area. With low prep and clear
3rd
Basic Operations, Geometry
3rd & 4th Grade Perimeter Worksheets | Unit Test Prep Printables | No-Prep Math
Are your students ready to demonstrate their mastery of geometry and measurement? Ensure they are fully prepared with these no-prep, print-and-go perimeter worksheets designed specifically for 3rd and 4th-grade unit test prep. What's Included:6 pages of meticulously designed student worksheets12 rigorous questions requiring students to calculate the perimeter of rectilinear figures3 targeted questions where students must find the missing side length when the total perimeter is givenA comprehens
3rd - 4th
Geometry, Math Test Prep, Measurement
CCSS
3.MD.D.8
, 4.MD.A.3
"Trigonometry Trigger" - Cold Case Mystery Activity
Students will play the role of Detectives trying to solve the Cold Case with the new Trigonometric Analysis. Students will need to sift through the reports and find the essential information to formulate a triangle to match the angle of elevation of the bullet. They will need to use multiple steps as well as some Trig functions.AR State Standard:G.RT.6: Use trigonometric ratios (sine, cosine, and tangent) to calculate missing side lengths and angle measures in a right triangle, including applica
10th
Geometry
CCSS
HSG-SRT.A.2
, HSG-SRT.B.5
, HSG-SRT.C.6
+6
Open Up Resources Unit 7 Practice Problems
Master Measurement! Open Up Resources Unit 7 Practice for Grade 3 Save time and boost mastery with this ready-to-print practice pack aligned to Open Up Resources Math, Unit 7—focused on geometry and perimeter. What’s inside 15 printable worksheetsShape Detectives: Activities that require students to analyze shapes and categorize them based on specific attributes (parallel lines, right angles, etc.).Perimeter Puzzles: Engaging problems that ask students to find the perimeter of polygons and solve
3rd
Geometry, Measurement, Other (Math)
3rd–4th Grade Math Flip Book: Area
This 3rd–4th Grade Math Flip Book provides students with a clear, step-by-step process for understanding and calculating area. Designed as a visual reference, this resource helps students build a conceptual understanding of area before applying formulas and solving problems. Students learn that area represents the number of unit squares inside a two-dimensional shape and practice finding area using multiple representations. ✅ Students learn how to: Define area using unit squares Find area by c
3rd - 4th
Geometry, Math, Measurement
CCSS
3.MD.C.5
, 3.MD.C.5a
, 3.MD.C.6
+1
Also included in: Math Flip-Books | Complete Interactive Notebook Bundle | Grades 4-6
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