Solving for Angle Measures of Right Triangles

Question 1

Which relationship in the triangle must be true?

Revolt · Accepted Answer

sin(B) = cos(90 – B)

Question 2

Which equation can be solved to find one of the missing side lengths in the triangle?

Revolt · Accepted Answer

cos(60o) =

Question 3

Which equation can be used to solve for b?

Revolt · Accepted Answer

b = (8)tan(30o)

Question 4

Which equation can be used to solve for b?

Revolt · Accepted Answer

tan(30o) =

Question 5

A triangle has angles that measure 30o, 60o, and 90o. The hypotenuse of the triangle measures 10 inches.Which is the best estimate for the perimeter of the triangle? Round to the nearest tenth.

Revolt · Accepted Answer

23.7 in.

Question 6

What is the approximate value of x? Round to the nearest tenth.

Revolt · Accepted Answer

4.6 cm

Question 7

The equation can be used to determine the length of line segment AC.

Revolt · Accepted Answer

12.9 cm

Question 8

A ramp leading into a building makes a 15° angle with the ground. The end of the ramp is 10 feet from the base of the building (along the ground).Approximately how long is the ramp? Round to the nearest tenth.

Revolt · Accepted Answer

10.4 feet

Question 9

A right triangle has a 30o angle. The leg adjacent to the 30o angle measures 25 inches.What is the length of the other leg? Round to the nearest tenth.

Revolt · Accepted Answer

14.4 in.

Question 10

Right triangle ABC is shown.

Revolt · Accepted Answer

sin(50o) =

Solving for Angle Measures of Right Triangles Answers

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