Question

The area of the rectangle is 30 cm*2

Find the exact length of the longer side of the rectangle.

Answer 1

Given..... ( x + 3 ) * ( 3x + 3 ) = 30

( x + 3 ) * ( x + 3 ) = 10
taking sq root of both sides

x + 3 = 3.16

x = 0.16

put this value of x in ( 3x + 3 ) and you'll get the answer