Soh Cah Toa and Special Right Triangles

Choose the correct ratio.

• sin(37)=x/14

• cos(37)=x/14

• tan(37)=x/14

• sin(37)=14/x

From ∠C, what side is AB?

• Adjacent

• Hypotenuse

• Opposite

• Sine

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

What type of special triangle is this?

• 45°-45°-90°

• 30°-60°-90°

• Isosceles

• Obtuse

What is the length of y in this picture? (Use what you know about special right triangles. Is this 45-45-90 or 30-60-90?)

• 45

• 5√2

• 5

Find a.
(Use what you know about special right triangles. Is this 45-45-90 or 30-60-90?)

• 2

• 12

• 6

What is the sine of angle C? (Hint: SOH CAH TOA)

• 7/24

• 7/25

• 24/25

• 25/24

Choose the correct ratio. (Hint: SOH CAH TOA)

• cos(33)=x/14

• sin(33)=x/14

• sin(33)=14/x

Solve for x. Round to the nearest tenth.

(Hint: SOH CAH TOA)

• 103.5

• 4.7

• 55.0

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

(Hint: SOH CAH TOA)

• 9.4

• 55.2

• 20.15