SOLUTION: How do I calculate the length of the shorter of the two sides of a rectangle which has an area of 18.86m2 and a perimeter of 21.00 m?

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Question 940428: How do I calculate the length of the shorter of the two sides of a rectangle which has an area of 18.86m2 and a perimeter of 21.00 m?
Found 2 solutions by laoman, MathTherapy:
Answer by laoman(51) About Me  (Show Source):
You can put this solution on YOUR website!
For a rectangle, Area = length * breadth
Perimeter = 2(length + breadth)
Let l rep. length, breadth reo. w
From statement Area, l*w=18.86 eqn1
and Perimeter, 2(l+w)=21
expanding
2*l+2*w=21 ----eqn2
Solving eqn1 and eqn2 simultaneously
Solved by pluggable solver: Linear System solver (using determinant)
Solve:
+system%28+%0D%0A++++1%5Cl+%2B+1%5Cw+=+18.86%2C%0D%0A++++2%5Cl+%2B+2%5Cw+=+21+%29%0D%0A++

Any system of equations:


has solution



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Answer by MathTherapy(10552) About Me  (Show Source):
You can put this solution on YOUR website!

How do I calculate the length of the shorter of the two sides of a rectangle which has an area of 18.86m2 and a perimeter of 21.00 m?


Shorter side: highlight_green%282.3%29 m