ICSE /Class 9
Maths MCQ Based On Circle
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ICSE Class 9 Maths Circle
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Find the length of OA
Use the property:
\\(\\angle ACB = \\frac{\\angle AOB}{2}\\)
Angle subtended by an arc at the centre is double the angle subtended by an arc on the remaining part of the circle.
A circle's equal chords subtend equal angles at its centre.
Take \\(\\angle PRQ=\\) 90o
circle
Angle subtended by an arc at the centre is double the angle subtended by an arc on the remaining part of the circle.
Find the length of OA
Angle subtended by an arc at the centre is double the angle subtended by an arc on the remaining part of the circle and sum of opposite angles of a cyclic quadrilateral is 180\\(^{\\circ}\\).
In the given figure,
\\(\\angle BAC = \\) 90o and \\(\\angle ABC\\) = \\(\\angle ACB\\)
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