Question

sila
The perimeter of a rectangle is 130 cm. If the breadth of the rectangle is
30 cm, find its length. Also find the area of the rectangle.
dooroflength 2 mand breadth Imis fitted in a wall. The length of the
mandirdis 36m (Fig.1). Find the cost of​

Answer 1

Answer:

Length =35

Area =1050

Explanation:

Perimeter of a rectangle is 2(l+b)

Given

Perimeter =130

Breadth =30

Length =l

130=2(l+30)

130/2=l+30

65=l+30

65-30=l

35=l

Area of a rectangle =l*b

So 35*30

1050

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Answer 2

Answer:

length is 35cm and area of rectangle is 1050cm^2

Explanation:

let the length is x

so perimeter of rectangle =2 (l+b)

2 (x+30)=130

2x+60=130

2x=130-60

2x=70

x=70/2

x=35

so area of rectangle =l×b

35×30=1050cm^2