Question

EXAMPLE 1: The perimeter of a rectangular sheet
is 120 cm. If its length is 40 cm, find the breadth.
Also find its area.​

Answer 1

Answer:

perimeter=2(l+b)

120=2(40+b)

120=80+2b

120-80=2b

40cm=2b

b=40/2

b=20cm

area=l×b

40×20

800cm²

Step-by-step explanation:

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