1. Splash Screen

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

3. KC

4. Example 3 Find Square Roots Answer: 6 Find 6 ● 6 = 36, so = 6. What number times itself is 36?

5. 1.A 2.B 3.C 4.D Example 3 A.8 B.32 C.640 D.4,096 Find

6. Example 4 Find Square Roots Find Answer: Use a calculator. 676 ENTER = 26

7. 1.A 2.B 3.C 4.D Example 4 A.16 B.23 C.529 D.279,841 Find

8. Example 5 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

9. 1.A 2.B 3.C 4.D Example 5 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?

10. End of the Lesson