Converse of the Pythagorean Theorem

The Pythagorean Theorem works on which triangle?

• obtuse

• isosceles

• scalene

• right

• all triangles

If a right triangle has side lengths 6, 7 and 3, which side is the hypotenuse?

• 6

• 7

• 3

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

• true

• false

Would a triangle with these side lengths be a right triangle?

4, 5, 6

• Yes

• No

Side c on a right triangle is ALWAYS the longest.

• true

• false

Sides a and b are called legs.

• true

• false

Does the set of numbers represent a right triangle?

20, 25, 15

• yes

• no

What is the opposite of squaring a number?

• divide

• multiply

• fractions

• square root