Question

if the perimeter of a rectangle is 390 cm amd the length is 30cm find its breadth and also the area​

Answer 1

Length, l = 30cm

breadth, b = ?

Perimeter of rectangle = 30cm

Perimeter of rectangle = 2(l+b)

30cm = 2(30+b)

30 = 60 + 2b

60 - 30 = 2b

30 = 2b

b = 15

Hence, the breadth is 15cm.

Now, Area of rectangle = l × b

= 30 × 15

= 450 cm²

Therefore, Area of rectangle is 450cm².

Answer 2

Answer:

the length is 35cm and the area is 1050cm²

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