The length of a rectangle is 7cm more than its breadth. If the perimeter is 62 cm, find the length and breadth.

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L= 19 cm; B=12cm

L= 20 cm; B=13cm

L= 21 cm; B=14cm

L= 22 cm; B=15cm

answer is A.

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Detailed Solution

Concept: You need to know the formulas associated with the perimeter of the rectangle. If the length and width of the rectangle are given as L and B, respectively, the perimeter of the rectangle is given by:

The internal angles of a rectangle, which has four sides, are all exactly 90 degrees. At each corner or vertex, the two sides come together at a straight angle. The rectangle differs from a square because its two opposite sides are of equal length.
Given, The length of a rectangle is 7cm, the perimeter is 62 cm

Both sides are divided by 2. then we get:
Question Image

By subtracting 7 and by dividing 2 we get:
Question Image

Breadth is equal to 12 and the length is equal to

Hence, the correct answer is option (1).

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