Question

The perimeter of the rectangle and square are same .Length and breadth of
the rectangle are 10 cm and 8 cm respectively. What is the area of the
square.
(a)
114sq. cm
81 sq.cm
(b)
(d)
36sq.cm
64sq.cm
(c)​

Answer 1

Answer:

Your answer is 81 sq cm

Step-by-step explanation:

perimeter(rect)= peri(sq)

2(l+b) = 4×side

2×18 = 4×side

36/4 = side

9=side

Area(sq)= side²= 9² =81

Answer 2

Answer:

$81 \: cm²$

Step-by-step explanation:

Perimeter of rectangle is = 2(+b)

=2(10+8)

=2(18)

= 36 cm.

Now, perimeter of square is 4(a),

where a is the side of square.

We have given that perimeter is

equal so equate 4(a) with the

perimeter of the rectangle, we get:

4(a) = 36

a = 9 cm

So the side of the square is 9cm.

Now area of sqare is 9×9=81.

So the area of the square is 81 cm².