The perimeter of a rectangle is 81 m and its breadth is 12 m. Find its length and area.
Mensuration
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Question

The perimeter of a rectangle is 81 m and its breadth is 12 m. Find its length and area.

KnowledgeBoat · Accepted Answer

Given, Perimeter = 81 m Breadth (b) = 12 m Let length of rectangle = l meters By formula, Perimeter = 2(l + b) ⇒ 81 = 2(l + 12) ⇒ l + 12 = ⇒ l + 12 = 40.5 ⇒ l = 40.5 - 12 = 28.5 m. Area = l × b = 28.5 × 12 = 342 m2. Hence, length = 28.5 m and area = 342 m2.

Mathematics

The perimeter of a rectangle is 81 m and its breadth is 12 m. Find its length and area.

Mensuration

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Mathematics

The perimeter of a rectangle is 81 m and its breadth is 12 m. Find its length and area.

Mensuration

Related Questions

Calculate the area of quadrilateral ABCD in which △BCD is equilateral with each side equal to 26 cm, ∠BAD = 90° and AD = 24 cm.

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