Name:    Self-Quiz:  Solving Right Triangles

Multiple Choice
Identify the choice that best completes the statement or answers the question.

1.

To measure the height of a flagpole, a person measures the angle of elevation from a point on the ground to the top of the pole to be .  The distance from that point to the bottom of the flagpole is 12 feet.  How tall is the pole?
 a. 36.9 feet c. 15.7 feet b. 28.5 feet d. 11.4 feet

2.

In the diagram below, find the length of AB.
 a. 16.1 c. 19 b. 42.3 d. 143

3.

Surveyors need to measure the distance across the river shown below as

Rather than trying to measure across the water, they measure the distance from A to C as 260 feet.  They pick a spot, point B, across the river so that the angle is a right angle and the angle .  Find the distance from A to B.
 a. 167 feet c. 310 feet b. 218 feet d. 347 feet

4.

What is the altitude to the base of an isosceles triangle whose legs are each 10 cm and base is 8 cm?
 a. 4 cm c. 8.133 cm b. 6 cm d. 9.164 cm

5.

What is the measure of the base angles of an isosceles triangle whose legs are each 10 cm and base is 8 cm?
 a. c. b. d.

6.

What are the measures of the sides of a regular pentagon if the radius is 6 cm?
 a. 3.53 cm c. 7.05 cm b. 4.85 cm d. 9.71 cm