Question

(v) The perimeter of a rectangle is 130 m.
If its breadth is 30 m, find its length
and area.​

Answer 1

Answer:

Length = 35m

Area = 1050m^2

Step-by-step explanation:

Perimeter = 130m

Breadth = 30m

________________________

Formulas :-

Perimeter = 2(l+b)

Area = l×b

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Perimeter = 2(l+b)

=> 130 = 2(l+30)

=> 130 = 2l + 60

=> 2l + 60 = 130

=> 2l = 130 - 60

=> 2l = 70

=> l = 70/2

=> l = 35

Length = 35m

_________________________

Area = l×b

= 30×35

= 1050

Area = 1050m^2

Answer 2

Answer:

Perimeter: 130 m

Length: ?

Breadth: 30 m

Perimeter = 2(L+B)

130 = 2(L+30)

L+30 = 130÷2

L+30 = 65

L = 65-30

L = 35

Length : 35 m

__________________________

Length:35 m

Breadth:30 m

Area= L×B

= 35×30

= 1050 m^2