Question

class 8 chapter 2 exercise 2.2 question 8 and 9​

Answer 1

Answer:

8 ans.

let breadth is x mtrs.

length is x+26mts

perimeter 400m

perimeter of a rectangular field is 400 metres

2(l+b)=400

2(x+36+x)=400

2x+26=400÷2=200

2x=200-26

2x=174

x=174÷2

x=87

breadth is 87 metres .

length is 87+26=113 metres

9question ans..

perimeter of rectangular field=56mts

2(l+b)=56

2(2x-8+x)=56

3x-8=56÷3=28

3x=28+8

3x=36

x=36÷3=12

breadth is 12

length is 2(12-8)

24-8

16 meters