Matrices & Pythagorean Theorem Quiz

The Pythagorean Theorem only works for ________ triangles.

• Scalene

• Obtuse

• Equilateral

• Right

The side that is missing is

• the hypotenuse

• a leg

• Nothing

• a right angle

The side that is missing is

• the hypotenuse

• a leg

• We aren't missing a side

• the right angle

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

What is the opposite of squaring a number?

• divide
• multiply 
• fractions
• square root

If you are solving to find a missing leg, should you add or subtract?

• Add

• Subtract

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

• x² + 15² = 21²

• x² – 15² = 21²

• 15² + 21² = x²

• x² + 21² = 15²