Examples 1 and 2 Find the square of each number.- 6 2. 10 33 17 4. 30
Examples 3 and 4 Find each square root.- √ 9 6. √ 36 7. √ 121 8. √ 169
Example 5 9. ROAD SIGNS Historic Route 66 from Chicago to66
Los Angeles is known as the Main Street of America.
If the area of a Route 66 sign measures 576 square
inches and the sign is a square, what are the
dimensions of the sign?= Step-by-Step Solutions begin on page R1.
Extra Practice begins on page EP2.
Examples 1 and 2 Find the square of each number.- 4 11. 1 12. 7 13. 11
- 16 15. 20 16. 18 17. 34
Examples 3 and 4 Find each square root.- √ 4 19. √ 16 20. √ 49 21. √ 100
- √ 144 23. √ 256 24. √ 529 25. √ 625
Example 5 26. MEASUREMENT Roslyn’s bedroom is shaped like a square. What are the
dimensions of the room if the area of the floor is 196 square feet?- SPORTS For the floor exercise, gymnasts perform their tumbling skills on
a mat that has an area of 1,600 square feet. How much room does a
gymnast have to run along one side of the mat?
B 28. GEOGRAPHY Refer to the squares in the215 mi232 mi 256 mi1"/$
diagram. They represent the approximate '-
areas of Florida, North Carolina, and
Pennsylvania.
a. What is the area of North Carolina in
square miles?
b. How much larger is Florida than
Pennsylvania?
c. The water areas of Florida, North Carolina, and Pennsylvania are
11,881 square miles, 5,041 square miles, and 1,225 square miles,
respectively. Make a similar diagram comparing the water areas of
these states.2929 MEASUREMENT A chessboard has an area of 324 square
inches. There is a 1-inch border around the 64 squares
on the board. What is the length of one side of the
region containing the small squares?Lesson 3B Square Roots 55052-061_C1_L3_895130.indd 55 12/29/09 12:28 PM