Right Triangle Review

What is the length of y in this picture?

In this isosceles right triangle, what is the length of x?

• 8√2

• $\frac{8}{\sqrt{2}}$

• 16

• 8

Which is the length of v in this 30-60-90 triangle?

• $4\sqrt{3}$

• 4

• 8

• $4\sqrt{2}$

What is the length of the long leg of this 30-60-90 triangle?

• 6

• 3

What is a in this 30-60-90 triangle?

• a = 7√3

• a = 7√2

• a = 14

• a = 14√3

Solve for x (use geometric mean- altitude) and solve for y (geometric mean- leg). Select 2 answers below:

• x=4

• x=16

Find x (missing altitude) and y (missing leg). Select two answers below:

FInd the geometric mean

• 80

• 18

Which equation can be used to solve for "x"?

• 15² + x² = 21²

• x² – 15² = 21²

• 15² + 21² = x²

• 21² + x² = 15²