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Class-9,Circles
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Q1) Greatest chord of a circle is called its
*
1 point
secant
chord
diameter
radius
Q2) Angle formed in minor segment of a circle is
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1 point
a right angle
a straight angle
an acute angle
an obtuse angle
Q3) Number of circles that can be drawn through three non-collinear points is
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1 point
0
2
1
3
Q4) AB is a chord of a circle with radius ‘r’. If P is any point on the circle such that ∠APB is a right angle , then AB is equal to
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1 point
3r
r
r*r
2r
Q5) In the given figure if OA = 5 cm, AB = 8 cm and OD is perpendicular to AB, then CD is equal to
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1 point
4 cm
3 cm
2 cm
5 cm
Q6) X is a point on a circle with centre O. If X is equidistant from the two radii OP, OQ, then arc PX : arc PQ is equal to
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1 point
it is 2 : 1
it is 1 : 1
it is 1 : 2
it is 2 : 3
Q7) If ABCD is a cyclic trapezium in which AD∥ BC and ∠B=60o, then ∠BCD is equal to
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1 point
80o
90o
60o
100o
Q8) If a straight line APQB is drawn to cut two concentric circles, then
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1 point
AP > BQ
AQ > PB
AP = BQ
AP < BQ
Q9) If AB = 12 cm, BC = 16 and AB is perpendicular to BC, then the radius of the circle passing through the points A, B and C is
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1 point
6 cm
10 cm
8 cm
12 cm
Q10) In the given figure, if ∠ADC=118o, then the measure of ∠BDC is
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1 point
28o
22o
38o
32o
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