Unit 7 Test

Which is the length of XZ?

• 78.1 in.

• 36.4 in.

• 70.8 in.

• 38.6 in.

The end of a 25 foot ladder is leaning against the top of a wall. The other end of the ladder is 7 feet from the base of the wall. What is the height of the wall?

• 24 feet

• 14 feet

• 19 feet

• 26 feet

If BC = 12, what is the length of AC in ΔABC?

• 12

• 24

• 12√2

• 36√2

An aircraft takes off and climbs at a constant angle of 30° until it reaches an altitude of 6 miles. At that point, what is the plane’s horizontal distance from the airport?

• 12 miles

• 6 miles

• 8.4 miles

• 10.4 miles

A sheet metal worker needs to cut a piece of sheet metal in the shape shown below. What is the length of the longest side of this triangle?

• 9 inches

• 6√3 inches

• 18 inches

• 12√3 inches

Find the value of y for the following triangle.

• 6√3

• 260

• 3√6

• 4√29

Which equation may be used to find the length of XY?

• cos 54° = x/8

• cos 54° = 8/x

• cos 54° = 15/x

• cos 54° = x/15

Find the measure of the indicated angle. Round your answer to the nearest degree.

• 28°

• 10°

• 30°

• 26°

Right triangle ABC is pictured below. Which ratio is equivalent to cos A?

• 12/15

• 15/7

• 7/15

• 12/7

What is the value of tan(63°)?

• 0.726543

• 1.96261

• 0.587785

• 0.891000