Math Doubts

Area of an annulus

Fact-checked:

Formula

$A \,=\, \pi(R^2-r^2)$

Ashok Kumar B.E. - Founder of Math Doubts

Ashok Kumar, B.E.

Founder of Math Doubts

A Specialist in Mathematics, Physics, and Engineering with 14 years of experience helping students master complex concepts from basics to advanced levels with clarity and precision.