CBSE /Class 9
Maths MCQ Based On Angle subtended by an arc of a circle
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CBSE Class 9 Maths Angle subtended by an arc of a circle
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Use the theorem of angle extended by an arc of the circle.
What is the relationship between angle subtended by an arc at the centre of the circle and remaining part of it?
Think about the circles and try to draw the diagram with semicircular arc.
The angles opposite to equal sides are equal.
Theorem: The angle suspended by an arc at the center is double the angle suspended by it any point on the remaining part of the circle.
Use the reflex angle method.
Use the properites of cyclic quadrilateral to find the answer.
Using the property of angle subtended in the same segment, ∠PQR = ∠QPS. Then applying Pythagoras' theorem in ∆QOR and ∆POS,
Equation of circle, x2 + y2 + 2gx + 2fy + c = 0,Co-ordinate of circle, (-g,-f)
Use the cyclic quadrilateral theorem.
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