Question

The length of a rectangle is three times its width its perimeter is 24 cm find its area

Answer 1

Answer:

27

Step-by-step explanation:

l=3b

perimeter=24

(2l+2b)=24

(6b+2b)=24

8b=24

b=3

so, l=9

Area= l×b

=27

Answer 2

Answer:

27cm

Step-by-step explanation:

width = X

length = 3X

now perimeter = 2(L+W)

=} P = 2(3X+X)

=} P = 2(4X)

=} P = 8X

perimeter = 24 (given)

=} 24 = 8X

=} X = 24/8

=} X = 3cm

therefore length = 3X =} 3(3) =} 9cm

width =} X =} 3cm

now area = L x W

=} 9 x 3

=} 27cm

therefore area = 27cm

hope it helped you

have a good day