Question

the length of rectangle is 1 cm more than its width and it's perimeter is 28 cm then area of rectangle is​

Answer 1

Answer:

42 cm^2

Step-by-step explanation:

length = bridth + 1

perimeter = 2(length+bridth)

28 = 2( bridth + 1 + bridth)

28 = 4 bridth +2

28-2 = 4 bridth

6= bridth

length = 6+1=7cm

area = length × bridth

= 7× 6

42 cm^2

Answer 2

Answer:

Area = 48.75 square cm

Step-by-step explanation:

Let, length, width and perimeter of the rectangle be 'l', 'w' and 'p' respectively.

Given : l = w + 1

p = 28 cm

p = 2(l + w)

28 = 2((w + 1) + w)

28 = 2(2w + 1)

28/2 = 2w + 1

14 = 2w + 1

13= 2w

6.5 cm = w

l = 6.5 + 1

l = 7.5 cm

Area = l x w

Area = 7.5 x 6.5

Area = 48.75 square cm