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Geometry - Circles

Multiple Choice Questions

O is the circumcentre of . If , , then is equal to

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If discount of 10% is given on the marked price of a radio, the gain is 20%. If the discount is increased to 20%, the gain is

222 Views

O is the centre of and , then the measure of is

125°
100°
130°
115°

236 Views

AB and CD are two parallel chords of a circle lying on the opposite side of the centre and the distance between them is 17cm. The length of AB and CD are 10 cm and 24 cm, respectively. The radius (in cm) of the circle is

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In the given figure, O is the centre, Then x, is equal to

$45 degree$
$55 degree$
$65 degree$
$65 degree$

240 Views

AC is a chord of circle whose centre is at O. If B is any point on the arc AC and $angle OCA space equals space 20 degree$ , then the magnitude of $angle ABC$ is

$100 degree$
$40 degree$
$140 degree$
$140 degree$

380 Views

Two equal arcs of the two circles subtend angle of $60 degree$ and $75 degree$ at the centre. The ratio of the radii of the two circles is

$5 over 4$
$3 over 2$
$4 over 5$
$4 over 5$

221 Views

An angle in a semicircle is

$45 degree$
$60 degree$
$90 degree$
$90 degree$

156 Views

A chord of length 16 cm is drawn in a circle of radius 10 cm. The distance of the chord from the centre of the circle is

8 cm
6 cm
4 cm
12 cm

1177 Views

10.

In a circle with centre O, AB is a diameter and CD is a chord which is equal to the radius OC. AC and BD are extended in such a way that they intersect each other at a point P, exterior to the circle. The measure of ∠APB is

30°
45°
60°
60°

2540 Views