Maths Differentiation and Applications of Derivatives NTA Abhiyas Question - Applications of Derivativas Single Correct MCQ
Published on: August 14, 2026

A wire of length 28 cm is bent to form a circular sector, then the radius (in cm) of the circular sector such that the area of the circular sector is maximum is equal to

A
5
B
6
C
7
D
8

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Text Solution

Verified by Experts
The correct answer is:
C

: 7

2r + r = 28

….(1)

Also,

So, for the area to be maximum, r = 7cm

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