SOLUTION: "The area of a square is 45 square centimeters. How long is the width?" I tried taking 45 and finding the square root but, that only lead to 6.74687654387357, or something like

Algebra ->  Rectangles -> SOLUTION: "The area of a square is 45 square centimeters. How long is the width?" I tried taking 45 and finding the square root but, that only lead to 6.74687654387357, or something like       Log On


   

Question 397253: "The area of a square is 45 square centimeters. How long is the width?"
I tried taking 45 and finding the square root but, that only lead to 6.74687654387357, or something like that, and the answers are A-22 sqrt( 5 ) cm,
B-2 sqrt( 10 ) cm, C-20cm, D-10cm, E- 3 sqrt( 5 ) cm
After i saw this i tried finding perfect square roots that divided equally into 45 i think 9 is the only one so would the answer be E?
Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!


Hi

A = L*W = s*s for a square where s is the length of each side

Question states***

  s^2 = 45 cm^2

  s = sqrt%2845cm%5E2%29  Tossing out negative solution for length

    s = sqrt%289%2A5%29cm%5E2 

    s = 3+sqrt%285%29+cm 

|not uncommon for answers to be given in simplest radical form



Note: 3 * sqrt%285%29 = 6.7082 = sqrt(45)}}}