Question

please tell me my answer in pic

Answer 1

l=length
b=breadth
l= 2b-16......(1)
perimeter =100
so,2(l+b)=100
l+b=50......(2)
substitute 1 in 2
2b-16+b=50
3b=66
b=22
l =50-22=28
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Answer 2

let 'l' be the length of rectangle

Let 'b' be the breadth of rectangle

According to question


l = 2b - 16 ...... (1)

Now
Perimeter of rectangle = 100 cm

2 (l + b) = 100

2 (2b - 16 + b) = 100

2b - 16 + b = 100/2 = 50

3b = 50 + 16

3b = 66

b = 66/3 = 22cm = breadth of rectangle

putting the value of b in equation (1)

l = 2b - 16 = 2 × 22 - 16 = 44 - 16
length = 28 cm

Answer. Length = 28 cm
Breadth = 22 cm