Maths Class 5 Perimeter

Asked by AKSHAY GURU VARADHARAJAN · SRI CHAITANYA TECHNO SCHOOL, JAYANTI NAGAR.

The perimeter of a rectangle is 36 cm. The measure of its length and breadth are natural numbers. How many such rectangles are possible ?

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A 9
B 2
C 8
D 18

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Answer: A. 9

The perimeter of a rectangle is 36 cm. 2(length+breadth)=36. Therefore L+B=18
Possible combinations are (1,17), (2,16), (3,15), (4,14), (5,13),(6,12),(7,11),(8,10), (9,9)

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The perimeter of a rectangle is 36 cm. The measure of its length and breadth are natural numbers. How many such rectangles are possible ?

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