Unit 7 Review for Right Triangles

Find the missing side.

• 18

• 16

• 17

• 19

Find the missing side.

• 11

• 12

• 13

• 14

What letter represents the hypotenuse?

• a

• b

• a and b

• c

Hypotenuse

• Vertical side in a right triangle

• Longest side in a right triangle

• Horizontal side in a right triangle

• a² + b² = c²

Which choice represents the legs?

• a and b

• a

• b

• c

What is the final step in solving this work for c?
a² + b² = c²
3² + 4² = c²
9 + 16 = c²
25 = c²

• Divide both sides by 2
• Take the square root of both sides

The Pythagorean Theorem is

a² - b² = c²

• false

• true

Level 2

Solve for the value of y

• 13

• 5

• 23

• 10

The Pythagorean Theorem ONLY works on which triangle?

• obtuse

• scalene

• isosceles

• right

Find the length of the missing side. 

• 20 in.
• 68 in.
• 16 in.
• 80 in.