Splash Screen. Main Idea/Vocabulary square perfect squares square root radical sign Find squares of numbers and square roots of perfect squares.

• square

• perfect squares

• square root

• radical sign

• Find squares of numbers and square roots of perfect squares.

Find Square Roots

Answer: 6

Find

6 ● 6 = 36, so = 6.

What number times itself is 36?

1. A

2. B

3. C

4. D

A. 8

B. 32

C. 640

D. 4,096

Find

Find Square Roots

Find

Answer:

Use a calculator.

676 ENTER= 26

1. A

2. B

3. C

4. D

A. 16

B. 23

C. 529

D. 279,841

Find

GAMES A checkerboard is a square with an area of 1,225 square centimeters. What are the dimensions of the checkerboard?

The checkerboard is a square. By finding the square root of the area, 1,225, you find the length of one side of the board.

Answer: So, a checkerboard measures 35 centimeters by 35 centimeters.

Use a calculator.

1225 ENTER= 35

1. A

2. B

3. C

4. D

A. 12 ft × 14 ft

B. 14 ft × 14 ft

C. 16 ft × 16 ft

D. 20 ft × 20 ft

GARDENING Kyle is planting a new garden that is a square with an area of 196 square feet. What are the dimensions of Kyle’s garden?

End of the Lesson