JEE MATHEMATICS MCQ: 2D GEOMETRY SYSTEM

1 Easy

1 of 1

Application +4 | -1

The length of a rectangle is three times the breadth. If the minimum perimeter of the rectangle is

160 \mathrm{~cm}

, then what can you say about breadth?

View answer and explanation

Correct option: C

Breadth

\geq 20

Option C (Breadth

\geq 20

) is correct because the perimeter is

2(l+b)

where

l=3b

, and the minimum perimeter is 160 cm, leading to

b \geq 20

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