Pythagorean Theorem High School

Which equation would be used to find the missing measurement?

A 10-foot ladder is leaning against the wall.  The bottom of the ladder is 4 feet from the base of the wall.  How high up the wall does the ladder reach?

• about 9 ft

• about 11 ft

• about 8 ft

• about 10 ft

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

Find the missing measurement.

• 13

• 5

• 23

• 10

A ladder is placed against a wall so that the top of the ladder is 15 feet from the ground. The base of the ladder is 6 feet from the wall. How long is the ladder? 

• 12 feet

• about 16 feet

• about 15 feet

• 18 feet

Which variable represents the hypotenuse?

• a

• b

• a and b

• c

The hypotenuse of a right triangle is ALWAYS the longest.

• true

• false

Find the distance between the two points.

• 8 units

• 9 units

A computer monitor has a length of 12 inches and a width of 16 inches. What is the diagonal measurement of the monitor?

• about 19 in.

• about 20 in.

• 20 in.

• about 21 in.

Find the distance between these two points.

• about 13 units

• about 8 units

• about 9 units

• about 10 units