Pythagorean Theorem

The Pythagorean Theorem ONLY works on which triangle?

• obtuse

• scalene

• isosceles

• right

19² = _____

• 400
• 360
• 324
• 361

Estimate the square root. Give the answer to the nearest tenth.

• 4.2

• 4.3

• 4.4

• 9

What is the opposite of squaring a number?
How do you "undo"  $x^2$  ? 

• divide by 2

• multiply by 2

• fractions

• take the square root

^{Which side is the hypotenuse?}

• b

• 15

• 25

• 20

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

• 15² + x² = 21²

• x² – 15² = 21²

• 15² + 21² = x²

• 21² + x² = 15²

Which equation can be used to solve for x?

• x² - 14² = 20²

• 14² + 20² = x²

• x^{2 +} 20² = 14²

• x² + 14² = 20²

Find the length of the missing side. 

• 17 cm
• 22 cm
• 15 cm
• 13 cm

The legs form what type of angle?

• Acute
• Obtuse
• Reflex
• Right

_{^{Find the missing side}}

• 48
• 108
• 83.6
• 72