Question

Find the length of rectangle whose perimeter is 70 cm and breadth is 15 cm​

Answer 1

Answer:

perimeter = 2(l+b)

70=2(l+15)

70/2=l+15

35-15=l

20=l

l =20

Step-by-step explanation:

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Answer 2

Answer:

Let the Length of the Rectangle =x

So,

Area of Perimeter= 2(l+b)

→ 70 = 2(x+15)

→ 70 = 2x + 30

→ 70-30 = 2x

→ 40 = 2x

→ x = 40/2=20

So, Length of the Rectangle is equal to 20cm.