Question

The length of a rectangular is twice its breadth if the perimeter is 90 m find the area of the rectangle​

Answer 1

Answer:

512 cm²

Step-by-step explanation:

Let the breadth of the rectangle is b cm. So, the length of the rectangle is 2b cm. Since, perimeter of rectangle is 90 cm. Hence, the length is 31 cm, breadth is 16 cm and area is 512 cm²

Answer 2

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Let the breadth of the rectangle is b cm. So, the length of the rectangle is 2b cm. We know that the perimeter of rectangle is

= 2 ( l + b )

Since, perimeter of rectangle is 90 cm. Therefore

→ 6b = 90 cm

→ breadth = 15 cm

→ lenght = 30 cm

AREA = LENGTH × BREADTH

AREA = 30 × 15

AREA = 450 cm ²

$\fbox \pink{AREA = 450 cm²}$