Math, asked by emohan3517, 1 year ago

Inner and outer radii of an annulus of circle are 10 cm and 4 cm .Find the area of annulus

Answers

Answered by yalok2191
5

\pi \times 10 {}^{2}  - \pi \times 4   {}^{2}

100\pi - 16\pi

84\pi

Answered by wifilethbridge
1

The area of annulus is 263.76 sq.cm.

Step-by-step explanation:

Inner radii = 4 cm

Outer radii = 10 cm

Inner area =\pi r^2 = 3.14 \times (4)^2 =50.24 cm^2

Outer area = \pi R^2 = 3.14 \times 10^2 = 314 cm^2

Area of annulus = Outer area - Inner area = 314 - 50.24 = 263.76 cm^2

Hence the area of annulus is 263.76 sq.cm.

#Learn more:

Find the area of annulus whose inner and outer radii are 6cm and 8cm

https://brainly.in/question/2679209

Similar questions