Pythagorean Theorem to Find a Side of Right Triangle

To which shape(s) does the Pythagorean theorem apply?

• All triangles

• Right triangles only

• Some right triangles and some isosceles triangles 

• Right triangles and circles.

The Pythagorean Theorem is _________

• a + b = c

• a² + b² = c²

• a² + b² + c

• A = LW

When do we use the Pythagorean Theorem?

• To find a missing angle in a right triangle

• To find the missing side of a right triangle

• To find the area of a right triangle

• To find the slope of a right triangle

• a

• b

• c

• A

• B

• C

• D

Find the missing side (a)  

• 6.4

• 9

• 41

• 3

• 11

• 12

• 9.8

• 11.5

The diagram below shows the side view of a ramp used to help load and unload a moving van. Which measurement is closest to the length of the ramp in feet?

• 8.5 ft

• 10.5 ft

• 9.5 ft

• 13.5 ft

Tags

8.7C

You need a ladder that will reach up a 25 foot tall house when placed 10 feet away from the house. How tall does the ladder need to be? (a)  

• 23 feet

• 26 feet

• 27 feet

• 22 feet

On your own paper, write an equation using the Pythagorean Theorem and solve for x.

• x = 6724

• x = 77.9

• x = 82

• x = 98