Question

HEY GUYS!!! GOOD EVE.
CAN U ALL HELP ME IN THIS!!!!!!!IT IS A VERY EASY QUESTION....
the areas of a square and rectangle are equal.if the side of the square is 12 cm and the difference between length and breadth is 7 cm . then find the perimeter of the rectangle.

Answer 1

Answer:

Length =16 Breadth=16

Step-by-step explanation:

Ar(sq.)=ar(rect.)

12*12=l*b

Since l-b=7

144=7+b(b)

144=b*b+7b

b*b+7b-144=0

b*b-9b+16b-144=0

b(b-9)16(b-9)=0

b=9,-16

b=9

l=b+7

l=7+9

l=16