Unit 4.1: Pythagorean Theorem Review

What is the formula for Pythagorean theorem?

• a²⁺b²=c²
• a+b=c
• a-b=c
• c-a=c

The Pythagorean Theorem ONLY works on which triangle? 

• obtuse
• scalene
• isosceles
• right

What is the longest side of a right triangle called?

• Leg A
• Leg B
• Hypotenuse
• Pythagoras' Big Buddy

What are the 2 shorter sides of a right triangle called?

• Hypotenuse
• Pythagorean Theorem
• Legs
• Right triangle

a = 2.1, b = 7.2,
c = 7.5
Is this a right triangle?

• yes 
• no

8,9,15

• yes, it is a right triangle.

• no, it is not a right triangle.

8,14,16

• yes, it is a right triangle.

• no, it is not a right triangle.

9,40,41

• yes, it is a right triangle.

• nope,not a right triangle.

Which of the following sentences would belong in the proof that describes this image?

• The sum of the areas of the two smaller squares is equal to the area of the large square.
• The sum of the side lengths of the two smaller squares is equal to the side length of the large square.
• The difference of the areas of the two smaller squares is equal to the area of the large square.
• The differences of the side lengths of the two smaller squares is equal to the side length of the large square.

Daniel is using a ladder to clean the outside of his 2nd floor windows. He needs to reach a window 20 feet above the ground, but doesn't want to damage the garden that is 13 feet from the house. How long a ladder does he need?

• 23.9 ft.

• 33 ft.

• 49 ft.

• 284.5 ft.