Special Right Triangles Quiz

What is the ratio of the sides in a 30-60-90 triangle?

• 1:2:√3

• 1:√3:2

• 1:1:2

• 1:1:√2

In problem 7, if the side opposite 30 degrees is Y, what is the length of the hypotenuse?

• Y√3

• 2Y

• Y/2

• Y√2

How do you find the value of X in problem 7?

• By multiplying Y by √3

• By using the ratio of the sides

• By dividing Y by 2

• By setting X equal to Y

In problem 8, what is the value of Y if 5 represents 2Y?

• 2.5

• 5

• 5/2

• 10

What is the simplified form of X in problem 8?

• 5√3/2

• 10√3/6

• 5√3/3

• 10/3

In problem 9, if X is across from 60 degrees, what is the expression for X?

• X = a

• X = a/√3

• X = 2a

• X = √3a

What is the value of a in problem 9 if Y equals 10?

• 10√3

• 5√3

• 10/√3

• 5/√3

In problem 10, what is the expression for X if it is the hypotenuse?

• X = 2a

• X = a√3

• X = a/2

• X = 3a

How do you find the value of a in problem 10?

• By dividing Y by 2

• By dividing Y by √3

• By setting a equal to Y

• By multiplying Y by √3

What is the final value of X in problem 11?

• 15

• 15/2

• 30/2

• 30