Areas related to Circles ncert solutions Chapter 12 Exercise 12.3 Question 1
1. Find the area of the shaded region, if PQ=24 cm, PR=7 cm and O is the center of the circle.
Solution:
O is the center of the circle and RQ is the diameter. Therefore,
.
{ Angle made by diameter on the circumference of the circle is equal to
}
Using Pythagoras theorem on
, we can say that
cm
Radius of circle =r=
cm
Area of shaded portion = Area of semi-circle- Area of
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