CBSE Class 10 Maths (Standard) 2016 · Paper 30/3 · Question 17

Areas Related to Circles 3 marks Medium

In fig. 6, find the area of the shaded region, enclosed between two concentric circles of radii

7

cm and

14

cm where

∠ A O C = 4 0^{\circ}

. (Use

π = \frac{22}{7}

)

Annulus between radii 7 and 14 with an unshaded 40° sector

Answer

Area of the shaded region

\approx 410.67

^{2}

(i.e.

\frac{3696}{9}

^{2}

🔒 Step-by-step solution

Class 10 Maths — every question with an expert-verified, step-by-step solution.