Unit 5 Final Practice

Level 1

If a right triangle has side lengths 6, 6.7 and 3, which side is the hypotenuse?

• 6

• 6.7

• 3

• 15.7

• None of them

Level 3

Find the length of the missing side.

• 20 in.

• 68 in.

• 16 in.

• 80 in.

Level 3

Find the length of the missing side.

• 25 cm

• 42 cm

• 52 cm

• 48 cm

Level 4

Solve for x.

• 38.9

• 40.2

• 45.6

• 54

_{^{Find the missing side}}

• 9
• 41
• 6.4
• 6.2

Level 1

The Pythagorean Theorem is

a² + b² + c²

• false

• true

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

• 15² – x² = 21²

• x² – 15² = 21²

• 15² + 21² = x²

• 21² – 15² = x²

Name the longest side of a right triangle.

• leg a
• leg b
• leg 
• hypotenuse

Can side lengths 3, 4, and 5 form a right triangle?

• yes because 3² + 4² = 5²

• no because 3² + 4² ≠ 5²

Given the lengths of a triangle are 6 in, 8 in and 10 in. Will this make a right triangle?

(HINT: "c" should be the longest side)

• yes because 6² + 10² = 8²

• yes because 6² + 8² = 10²

• no because 6² + 8² ≠ 10²