Question

The perimeter of a rectangle is 130 cm.If the breadth of the rectangle is 30cm. Find area of the rctangle.​

Answer 1

Solution:-

Given:-

Perimeter of the rectangle = 130 cm

Breadth of the rectangle = 30 cm

To Find:-

Area of the rectangle.

Formula:-

Perimeter of the rectangle = 2 × (length+ breadth).

Area of the rectangle = length× breadth.

By the Problem:-

$Perimeter \: = \: 2 \: × \: (length+ breadth) \\ 130 \: = \: 2 \: × \: (length+ 30) \\ 130 = 2 \times length + 60 \\ 2 \times length = 130 - 60 \\ 2 \times length = 70 \\ length = \frac{70}{2} \\ length = 35 \: cm$

$Area \: = \: length \: × \: breadth \\ Area = 30 \times 35 \\ Area = 1050 \: {cm}^{2}$

This can help you.

Answer 2

Perimeter=2(l+b)
130=2(l+30)
L=35

Area=L X B
1050cm^2