Question

The length of a rectangle is thrice its breath if the perimeter is 24 find the area

Answer 1

Answer:

let the breadth of rectangle=x

length=3x

perimeter=24

but, we know that, 2(l+b)= perimeter

2(l+b) =24

2(3x+x)=24

2×4x =24

8x=24

x=24÷8

x=3

therefore length=3×3=9

breadth=3

now, area = l×b

=3×9

=27