Find Angles and Sides with Sin, Cos, Tan

If you are given the hypotenuse and an adjacent side, which trig function should you use?

• sine

• cosine

• tangent

Find the measure of the indicated angle. Round to the nearest tenth.

• 9.4

• 55.2

• 20.2

• 19.4

Find the length of side y. Round to the nearest hundredth. 

• 22.32 cm

• 36.5 cm

• 76.34 cm

• 87.76 cm

Find cos∠A as a decimal rounded the the nearest ten-thousandth.

• .4706

• .875

• .8824

• .5333

Which of the following is correct for finding the measure of angle Z?

• ∠Z = tan^-1 55/48

• ∠Z = sin^-1  48/55

• ∠Z = cos^-1  55/73

• ∠Z = tan^-1  48/73

If you are given the two sides that are not the hypotenuse, which trigonometric function should you use?

• sine

• cosine

• tangent

• cotangent

If you are given the hypotenuse and an adjacent leg, which trigonometric function should you use?

• sine

• cosine

• tangent

• cotangent

Choose the correct ratio.

• cos(33)=x/14

• sin(33)=x/14

• cos(33)=14/x

• sin(33)=14/x

What is the cosine of angle P?

• p/q

• q/r

• p/r

• r/q

What is the height of the tree? Round the the nearest foot. 

• 38 ft

• 63 ft

• 20 ft

• 98 ft