Question

3) The Percimeter of a rectangle 180manda
its breadth is 40cm. its length is?​

Answer 1

Explanation:

peremeter of rectangle =180

breadth =40

perimeter of rectangle 2×(l+b)

180= 2×(l+40)

180/2=l+40

60=l+40

60-40=l

20=l

Answer 2

Answer:

50

Explanation:

perimeter of rectangle = 2(l+b)

therefore perimeter = 180 cm

b= 40cm and l= ?

so 2(l+b)= 180

2(l+40)= 180

l+40= 90     l= 90- 40  

l= 50 cm