Special Right Triangle and Trigonometric Ratio

I have been given the long leg in this 30-60-90 triangle.  How do I find the short leg?

• Multiply 7 by 2

• Multiply 7 by √3

• Divide 7 by 2

• Divide 7 by √3

Which mnemonic is the easy way to remember trigonometric ratios?

• SOH COH TOA

• SOH CAH TOA

• SOH CAH TAO

• SOH KAH TOA

What is the length of y?

• 8√2

• 4√2

• 4

• 8

Find the ratio for sinA. (Reduce the fraction)

• 36/27

• 4/5

• 36/45

• 3/5

Solve for x. Round to the nearest tenth.

• 103.5

• 4.7

• 55.0

• 23.4

What is the cosine of angle P?

• p/q

• q/r

• p/r

• r/q

Set up the problem...

• sin X = 41/28

• tan X = 41/28

• cos X = 28/41

• sin X = 28/41

What type of special triangle is this?

• 45°-45°-90°

• 30°-60°-90°

• Equiangular

• Equilateral

Find x.

• 10

• √3

• 5

• 10√3

Find x.

• 4

• 2

• √3

• 2√2