Trigonometry: Finding the Angle of a Right Triangle with Inverse Trig Functions
*There are two sets of 16 Task Cards, one with QR codes
and one without. Students are find an angle of a right triangle with Inverse Trigonometric Functions. The triangles pictured are not drawn to scale. They also are not all ABC triangles. Various letters are used for the vertices. This way students do not memorize b over c, or a over b. They must look carefully at each triangle and apply the rules.
Students do not need the internet to use the QR’s, but they do need to have a device with a QR reader app installed, such as Scan Life.
Students will need calculators to divide the correct sides. They can use the inverse trig functions on a scientific calculator to find the angle or they can use a 4 function calculator in conjunction with the Trig Value Tables I have included. I think this is a great place to teach students how to use tables as it is a skill that is needed in all walks of life. My students were also fascinated by how many answers were the same. It gave way to a great discussion on Pythagorean Triplets.
* Answer key
*Student response sheet with room for set ups
*Tables for Sine, Cosine, and Tangent
*How to Use Task Cards Resource
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