Question

the perimeter of rectangle is 130cm if breadth is 30cm find it length and area

Answer 1

the perimeter of rectangle is 2×(l+b)= 130
l+b=65
l+ 30= 65
l= 35
area is l×b=35×30=1050

Answer 2

We know that perimeter of a rectangle = 2(l + b).

Given that breadth of the rectangle = 30cm.

Given that perimeter of a rectangle = 130cm.

2(l + b) = 130

2(l + 30) = 130

2l + 60 = 130

2l = 70

l = 35cm.


We Know that Area of a rectangle = l * b

                                                          = 35 * 30

                                                          = 1050cm.


Hope this helps!