Question

Q7. Find the breadth of a
rectangular plot if its
perimeter is 80m and
length is 30m.
10m
20m
30m
40m​

Answer 1

Step-by-step explanation:

Since the given length is 30m

Given perimeter = 80m

Using the formula for perimeter of rectangle

2(l+b) = 80

2(30+b) = 80

60+2b = 80

2b = 20

b = 10

Therefore the breadth = 10m

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Answer 2

Step-by-step explanation:

perimeter of rectangle=2(l+b)

80m =2(30+b)

80m-30m. =2b

50m/2. =b

25m. =b