Right Triangle Geometry Review

From ∠C, what side is AB?

• Adjacent
• Hypotenuse
• Opposite

Find the measure of the indicated angle (?) round to the nearest tenth.

• 9.4
• 55.2
• 20.15
• 19.4

Which is the ratio of the opposite leg to the hypotenuse in a right triangle?

• sine
• cosine
• tangent
• secant

Find the ratio for sinA. (Reduce the fraction)

• 36/27
• 4/5
• 36/45
• 3/5

What is the correct ratio?

• sin 40 = w/28
• cos 40 = w/28
• tan 40 = w/28
• sin 40 = 28/w

Solve for x. Round to the nearest tenth.

• 103.5
• 4.7
• 55.0
• 23.4

Solve for x. Round to the nearest tenth.

• 9.8
• 0.1
• 0.038
• 9.9

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

A ramp is being built next to a 4-inch high sidewalk. The ramps angle of inclination is 10 degrees. Estimate the horizontal length of the ramp to the nearest tenth of an inch.

• 4.1 inches

• 3.9 inches

• 22.7 inches

• 0.7 inches

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. Which of these is nearest to the height of the lighthouse?

• 25 feet

• 45 feet

• 110 feet

• 135 feet