8th Grade MathUnit 7 Review

Unit 7 Review

1)a) Write the Pythagorean Theorem formula.

b) Find the length of the missing side.

10

8

x

1)a) Write the Pythagorean Theorem formula.

b) Find the length of the missing side.

Unit 7 ReviewAnswer

a2 + b2 = c2

x = 12.8

10

8

x

Unit 7 Review

2)a) Find the length of the missing side.

15

12

y

2)a) Find the length of the missing side.

Unit 7 ReviewAnswer

y = 9

15

12

y

Unit 7 Review

3) A tower needs stabilizing wires. The tower is 100 ft tall. The wires will be attached at the top of the tower and 40 ft from the base. How long does the wire need to be?

wire

100 feet

40 feet

3) A tower needs stabilizing wires. The tower is 100 ft tall. The wires will be attached at the top of the tower and 40 ft from the base. How long does the wire need to be?

Unit 7 ReviewAnswer

wire = 107.7 feet

wire

100 feet

40 feet

Unit 7 ReviewWhat distance between (1, 2) and (8, 7)?

Unit 7 ReviewAnswerWhat distance between (1, 2) and (8, 7)?

5

7

8.60

Unit 7 ReviewWhat distance between (-50, 20) and (60, 80)?

Unit 7 ReviewAnswer

60

(-50, 20)

125.30

What distance between (-50, 20) and (60, 80)? (60, 80)

110