Question

The perimeter of a square is 40 cm. Find the area :

• A. 10 sq.cm
• B. 160 sq.cm
• C. 100 sq.cm
• D. 400 sq.cm

Answer 1

Answer:

C. 100 sq.cm

$Perimeter\,of\,square = 4\times side$

$Area\,of\,square = side\times side$

$4\times side = 40$

$side = \frac {40}{4}$

=10cm

Area = $side \times side = 10 \times 10 = 100cm^2$