SOLUTION: One side of rectangle measure 3cm and its diagonal measures 5m. Area of rectangle is ?

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Question 258343: One side of rectangle measure 3cm and its diagonal measures 5m. Area of rectangle is ?
Found 2 solutions by richwmiller, palanisamy:
Answer by richwmiller(17219) About Me  (Show Source):
You can put this solution on YOUR website!
one side is 3 the diagonal is 5
this is the classic 3,4,5 right triangle
so the area is 3*4=12 cm^2

Answer by palanisamy(496) About Me  (Show Source):
You can put this solution on YOUR website!
Given, One side of rectangle measure 3cm and its diagonal measures 5m.
Therefore the other side is sqrt[ 5^2-3^2] = sqrt[25-9]=sqrt 16 = 4
Area of the rectangle = 3*4 = 12 sq cm