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NCERT Solutions Class 10 Mathematics Solutions for Areas Related to Circles - Exercise 12.2 in Chapter 12 - Areas Related to Circles

Question 15 Areas Related to Circles - Exercise 12.2

A chord of a circle of radius 10 cm subtends a right angle at the centre. Find the area of the corresponding major sector. (Use π = 3.14)

Question 15 Image - NCERT Solutions - Mathematics , Class 10 chapter Areas Related to Circles

Answer:

Here AB be the chord which is subtending an angle 90° at the center O.

It is given that the radius (r) of the circle = 10 cm

Area of major sector = Area of circle – Area of minor sector

= (3.14×102)-78.5

= 235.5 cm2

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