Question

Answer the question no.8 with process.

Answer 1

According to the question,

Perimeter of square = Perimeter of rectangle

=) 4*s = 2(l+b)

=) 4*21m = 2(l+b)

=) 84m = 2(l+b)

Since dimensions are in ratio of 4:3..

Let meet of ratio be x.

=) 84m = 2(4x+3x)

=) 84m = 2*7x

=) 84/14 m = x

=) x = 6m

Hence sides are 4*6m and 3*6m

= 24m and 18m.

Hope it's helpful to u.

Answer 2

perimeter of square=4×side
=4×21
=84m.
perimeter of square=perimeter of rectangle
let the ratio be x.
perimeter of rectangle=2(length+breadth)
84=2(4x+3x)
84=8x+6x
84=14x
x=84/14
x=6m.
length=4x=4×6=24m.
breadth=3x=3×6=18m.