**Areas related to Circles ncert solutions Chapter 12 Exercise 12.3 Question 12**

**12. **In fig. OACB is a quadrant of a circle with center O and radius 3.5 cm. If OD=2 cm, find the area of the

**(i) Quadrant OACB (ii) shaded region**

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by Jashan

**Areas related to Circles ncert solutions Chapter 12 Exercise 12.3 Question 12**

**12. **In fig. OACB is a quadrant of a circle with center O and radius 3.5 cm. If OD=2 cm, find the area of the

**(i) Quadrant OACB (ii) shaded region**

by Jashan

**Areas related to Circles ncert solutions Chapter 12 Exercise 12.3 Question 11**

**11**. On a square handerchief, nine circular designs each of radius 7 cm are made. Find the area of the remaining portion of the handerchief.

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**Areas related to Circles ncert solutions Chapter 12 Exercise 12.3 Question 10**

**10.** The area of an equilateral triangle ABC is 17320.5 . With each vertex of the triangle as center, a circle is drawn with radius equal to half the length of the side of the triangle. Find the area of the shaded region (blue). (Use and )

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**Areas related to Circles ncert solutions Chapter 12 Exercise 12.3 Question 9**

**9.** In diagram, AB and CD are two diameters of a circle (with center O) perpendicular to each other and OD is the diameter of the smaller circle. If, OA=7 cm, find the area of the shaded region.

by Jashan

**7.** ABCD is a square of side 14 cm. With centers A, B, C and D, four circles are drawn such that each circle touch externally two of the remaining three circles. Find the area of the shaded region.

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