Question

the perimeter of a square is 840cm find its area​

Answer 1

perimeter = 840 cm

=> 4a = 840

=> a = 840/4

.°. a = 210 cm

Answer 2

Answer:

705600

Step-by-step explanation:

See,

The formula of the area of a square is S x S

So,

840 X 840= 705600