Question

8.3 Find the length
length of the rectangle, who perimeter is 40m
and breadth is 5cm.​

Answer 1

Answer:

5÷2

Step-by-step explanation:

formula of perimeter

2×(l+b)

let length be x

2×(x+5)

2x+5

x=5÷2 ans....

Answer 2

Answer:

length of rectangle is 19.95

Step-by-step explanation:

perimeter of rectangle =2(l+b)

here,

p=40m

b=5/100= 0.05m

l=?

perimeter of rectangle=2(l+b)

40= 2(l+0.05)

40=2l + 0.1

40-0.1=2l

39.9= 2l

39.9/2=l

l= 19.95m