Question

A rectangle has the sum of lemgth and breadth 20cm.Find the perimeter.

Answer 1

Answer:

perimeter of rectangle is (2 into length + breadth)

first explain the question clearly

Answer 2

Answer:

2(L+b)=20

Step-by-step explanation:

L+b=10---- eq.1

b=-10----eq.2

now, value of eq.2

putt in eq.1

L-10=10

L=20

perimeter= 2(L+b)

= 2(20-10)

= 2×10

=20cm