Right Triangle Trigonometry

What type of special triangle is this?

• 45°-45°-90°

• 30°-60°-90°

• Equiangular

• Equilateral

Find x.

• 4

• 2

• √3

• 2√2

What is the value of x?

• 18√2

• 18

• 2√9

• 9√2

What are u and v in this 30-60-90 triangle?

• v = 2√3 u = 6

• v = 4 u = 4√3

• v = 4 u = 4√2

• v = 4√3 u = 8√3

solve for x

• 5552363959656.

• 10

• 100

• 89

Find the length of the missing side. 

• 17 cm

• 22 cm

• 15 cm

• 13 cm

From ∠C, what side is AB?

• Adjacent

• Hypotenuse

• Opposite

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

• sine

• cosine

• tangent

• secant

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 length of the ramp to the nearest tenth of an inch. 

• 4.1 inches

• 3.9 inches

• 22.7 inches 

• 0.7 inches