Question

The perimeter of a rectangle is 320cm .if the length of the rectangle is 90 cm .find the area enclosed by the rectangle​

Answer 1

☯ Perimeter of Rectangle = 320 cm

☯ Length of Rectangle = 90 cm

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✇ Let breadth of Rectangle be b cm.

We know that,

★ Perimeter of Rectangle = 2(Length + Breadth)

Here,

• Perimeter = 320 cm
• Length = 90 cm

Putting values,

➯ 320 = 2(90 + b)

➯ 320/2 = 90 + b

➯ 160 = 90 + b

➯ b = 160 - 90

➯ b = 70 cm

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✇ Now, Finding Area of Rectangle,

We know that,

★ Area of Rectangle = length × breadth

➯ Area = 90 × 70

➯ Area = 6300 cm²

∴ Area of rectangle is 6300 cm².