Pythagorean Theorem and Converse

Do the segment lengths 9, 12, and 15 form a right triangle?

• Yes

• No

• Maybe

• Pythagoras

Acute, right, or obtuse?

• Acute

• Right

• Obtuse

• I don't know

The hypotenuse of a right triangle is 18cm. One of the legs is 11cm. Find the length of the other leg.

• 12.4 cm

• 21.1 cm

• 14.2 cm

• Not enough information

What is the length of x in this 45-45-90 triangle?

• 4√2

• 4

• 8

• 4√3

What is the length of y in this 45-45-90 triangle?

• 8√2

• 4√2

• 4

• 8

11 in

13 in

9.2 in

9.6 in

• 11 in

• 13 in

• 9.2 in

• 9.6 in

Acute, right, or obtuse?

• Acute

• Right

• Obtuse

• I don't know

Find the length of the missing side. 

• 48 in.

• 52 in.

• 16 in.

• 24 in.

_{^{Find the missing side}}

• 36

• 76.8

• 12

• 40

_{^{Find the missing side}}

• 37

• 17.66

• 6

• 312