Question

The perimeter of a rectangle is 230 cm. If the length of the rectangle is 70 cm, find its
breadth and area?

Answer 1

Answer:

peri of rect. = 2(l+b)

230 = 2(70+b)

230 = 140+2b

2b = 230-140

2b = 90

b = 90/2 = 45.

Area of rect. = L× B

70×45 = 3150cm^2

Step-by-step explanation:

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Answer 2

Answer:

perimeter of rectangle = 2(l+b)

Step-by-step explanation:

p or rec- 2(70+b)

230 = 2(70+b)

230/2= 70+b

115=70+ b b=115-70= 45 cm