Right Triangle Trigonometry Angles

Find m∠S

• 21

• 69

• 23

• 67

Which inverse trig function would you use to find the measure of Angle A?

• inverse sine

• inverse cosine

• inverse tangent

• It is not possible to determine m<A

Which equation would you use to solve for the unknown angle?

• x = sin^–1(4/5)

• x = cos^–1(4/5)

• x = cos^–1(5/4)

• x = tan^–1(4/5)

Which equation would you use to solve for the unknown angle?

• x = tan^–1(24/7)

• x = tan^–1(7/24)

• x = tan^–1(25/7)

• x = tan^–1(7/25)

Which trig function would help you solve for the missing angle?

• sine

• cosine

• tangent

• pythagorean theorem

What is the correct set up for the problem to find the measure of the indicated angle?

• sin X = 41/28

• tan X = 41/28

• cos X = 28/41

• sin X = 28/41

From the given right triangle,

Find the value of angles M and N

M=​ ​ (a)  

N=​ (b)  

• 77.3°

• 12.7°

• 49.9°

• 40.1°

• 74.5°

• 15.5°

Right triangle ABC is shown. Select all expressions which are equal to the length of side BC.

Find and describe the error made in this student's work.

• They should have used cosine instead.

• They should have used tangent instead.

• They should have multiplied (2)(4.5)

• They should not have used the inverse sine.

• They plugged the numbers into the calculator wrong.

Which scenario describes the picture shown?

• 5 foot ramp is 8 feet away from a building.  What is the angle that the ramp makes with the ground?

• 5 foot ramp leans against an 8 foot structure.  What is the angle that the ramp makes with the ground?

• An 8 foot ramp leans
  against a building 5 feet away.  What angle does the ramp make with the ground?

• 5 foot man is 8 feet away from a building.  What is the angle of elevation?