Question

If the Length of a rectangle is 80 cm and perimeter is 8 m then what will be the breadth and area of it

Answer 1

Answer:

Step-by-step explanation:

2 (l+b) = 8m = 800 cm

2(80 + b) = 800

b= 320cm

area = 320x80 = 25600 $cm^{2}$

Answer 2

Answer:

1m=100cm

Hence, 1cm =0.01m

80cm=0.8m(length of the rectangle)

Perimeter=2(l+b)

8=2(0.8+b)

8/2=0.8+b

4=0.8+b

•°• b =4-0.8

=3.2m

Area=l×b

=(0.8×3.2)m^2

=2.56m^2