Question

Q11. A rectangular field is 100 m by 80 m. Find the ratio of:
(i) length to its breadth
(ii) breadth to its perimeter​

Answer 1

Step-by-step explanation:

Given that

A rectangular field is 100 m by 80 m.

To find:

the ratio of:

the ratio of:(i) length to its breadth

the ratio of:(i) length to its breadth(ii) breadth to its perimeter

Solution:

Dimensions of a rectangle=100 m×80 m

Therefore, L×B= 100 m×80 m

To find: the ratio of the length to its breadth to its perimeter.

Solution: Since L×B=100m×80m= 8000 Sq m

Part 1: Ratio=(L/B)=(100/80)=4/5.

Part 2: Finally, the corresponding ratio is shown by= (L/B)/P=(4/5)/P.

Since the perimeter of rectangle=2×(L+B)

Therefore, Perimeter=2×(100+80)m=

2×180 m=360 m.

Hence the required ratio=(4/5)/360=4/5×1/360=(1×1)/(5×90)

=1/450=1:450 Ans.

Hope it's help you.