Question

Area of rectangle having breadth 20 cm is 1200 what is th permiter of ractangle

Answer 1

Here is your answer.

Given

Area of rectangle = 1200 cm^2

Breath = 20cm

Area = Length × Breath.
1200 = length × 20.
length = 1200/20
= 60 cm.

Perimeter of rectangle = Sum of all sides.
=20 + 20 + 60 + 60
= 160cm.

Hope it helps you.

Answer 2

:As breath=20

And area=1200

Length=area ÷breath

1200÷20

=. 60

Now rectangle perimeter formula=

2(length+breath)

=2(60+20)

=2×80

=160 is the perimeter of rectangle