Correct option is A
Given:
PQ is the diameter of the circle.
∠QOR = 100°.
Concept Used:
Angle subtended by an arc at the center is twice the angle subtended by the same arc at any point on the circumference of the circle (this is a well-known property of a circle).
Angle in a semicircle: Any angle subtended by the diameter at the circumference is a right angle (90°).
Formula Used:
In a circle,
Angle subtended by the arc on the center = 2 Angle subtended by the same arc on the circumference.
Solution:
Angle subtended at the center=2×Angle subtended at the circumference text{Angle subtended at the center} = 2 \times \text{Angle subtended at the circumference}Solution:
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