Question

The length of the rectangle is twice the side of square and the side of the square is 3 cm more than the width of the rectangle.If the areas are equal, find the side of the square

Answer 1

Answer:

7.8 cm

Step-by-step explanation:

LET THE SIDE OF THE SQUARE BE X+3.

THE WIDTH OF RECTANGLE WILL BE X AND ITS

LENGTH WILL BE 2X+6.

(2X+3)(X)=(X+3)(X+3)

2X^2+3X=X^2+9+6X

X^2-3X=9

X^2-3X-9=0

WITH QUADRATIC FORMULAE WE SOLVE FOR X

x=4.8 cm