Question

Class 7 maths solutions of chapter 12

Answer 1

perimeter and area

formula- perimeter of rectangle- 2lenght+2breadth

formula - perimeter of square-4×side

area of rectangle - l×b (length×breadth)

area of square- Side ×side

Step-by-step explanation:

p.s 44

questions no. 1

• p=2(l×b)

let =length 1 =2l

breadth 1= 2b

p 1 =2(2l×2b)

=4 (l×b)

p 1 = 2×2(l×b)

=2×p

2 times