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Expert: - 1/2/2008


Question

"A dance pad is SQUARE, and has an area of 45 square feet. How long is one side of the dance pad (to the nearest thousandth)??? Answer__________ feet   Also, if the dance pad increased in size to an area of 53 sq. ft. by how many feet would the length of the side increase???"_________  

Answer
Questioner:   Sharyn
Category:  Advanced Math
Private:  No
 
Subject:  7th grade math
Question:  
"A dance pad is SQUARE, and has an area of 45 square feet. How long is one side of the dance pad (to the nearest thousandth)??? Answer__________ feet   Also, if the dance pad increased in size to an area of 53 sq. ft. by how many feet would the length of the side increase???"_________
..............................................
Hi, Sharyn,

If A = 45, then  s^2 = 45 and  s = sqrt(45).  Use your calculator:

Click View/Standard.
Enter 45
Click sqrt
Get 6.7082039324993690892275210061938, which rounds to
6.708

Click MC, then MS. (saves it.)

Enter 53
Click sqrt.
Get 7.280109889280518271097302491527
Click - (minus)
Click MR
Click =
Get 0.5719059567811491818697814853332 which rounds to 0.572 feet.

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