Lesson: Right Triangle Trigonometry: Solving for an Angle Mathematics

In this lesson, we will learn how to find a missing angle in a right triangle using the appropriate trigonometric function given two side lengths.

Lesson Plan

Students will be able to

label the sides and angle of a right triangle,
find an unknown angle measure in a right triangle (given a figure) using the sine, cosine, and tangent ratios and their inverse functions,
draw a figure for a question and use it to find an unknown angle in a right triangle,
interpret and solve real-life and applied problems using right triangle trigonometry.

Q1:

For the given figure, find the measure of , in degrees, to two decimal places.

Q2:

Find the measure of giving the answer to the nearest second.

Q3:

For the given figure, find angle , in degrees, to two decimal places.