Right Triangle Trig Test

A yacht is anchored 90 feet offshore from the base of a lighthouse. The angle of elevation from the boat to the top of the lighthouse is 26 degrees. The distance between the yacht and the top of the lighthouse is about 100 feet. Which of these is closest to the height of the lighthouse?

• 39 feet

• 44 feet

• 81 feet

• 135 feet

Find the length of side y.

• 22.32 cm

• 36.5 cm

• 76.34 cm

• 87.76 cm

Find the measure of the indicated angle.

What is the value of x?

• 17.30

• 11.33

• 0.06

• 23.82

Susan is flying a kite, which gets caught in the top of a tree.  Use the diagram to estimate the height of the tree. 

• 63 ft

• 65 ft

• 74 ft

• 87 ft

Solve for x.

• 25

• 65

• error

• .0074

A hawk sitting on a tree branch spots a mouse on the ground 15 feet from the base of the tree. The hawk swoops down toward the mouse at an angle of 30 degrees. What is the distance from the tree branch to the mouse?

• 7.5 ft

• 15 ft

• 26 ft

• 30 ft

Which Trig function do you use?

• Sine

• Cosine

• Tangent

Find the tangent of angle A.

• 3/5

• 4/5

• 3/4

• 4/3

Solve for x.

• 5.7

• 18.3

• 12.8

• 21.4