Question

If the area and the length of a rectangle are 72 cm2 and 12 cm,

respectively then its perimeter is

a) 36 cm b) 30 cm c) 24 cm d) 35 cm​

Answer 1

Answer:

it is a) 36 cm

Step-by-step explanation:

first, find the breadth of area.

therefore, are of a rectangle = l (length) x b (breadth)

= a ( area ) = 72

l ( length ) = 12

therefore,

a = l x b

so,

b = a ÷ l

= b = 72 ÷ 12

therefore,

b = 6 cm

this is your final answer.

thank u.

Answer 2

Answer: (a) 36 am

l×b = 72

b = 72/12

b = 6 cm

perimeter = 2(l+b)

= 2(12+6)

=2×18 cm

=36 cm