Triangle Reviews 1 - 6 are two sided worksheets that review calculating the third angle of a triangle, and classification of a triangle according to the measurements of angles and sides. Students must already know the meaning of: scalene, isosceles, equilateral, right, acute, obtuse and congruent.
Students must also know that:
(1.) if none of the angles are the same, then none of the lengths of sides are the same.
(2.) if two of the angles are the same, then two of the sides are the same.
(3.) if all three angles are the same, then the lengths of all three sides are the same.
Students must also know how to calculate the third angle. Students must 'prove' they understand these concepts by explaining their answers. There is the added grammar
practice of using "a" and "an" correctly.