Circles class 9

The region between an arc and the two radii, joining the centre to the end points of the arc is calles a /an

• sector

• segment

• semi circle

• arc

Tags

CCSS.HSG.C.B.5

In how many parts a circle divides the plane ,on which it lies?

• 2 parts

• 4 parts

• 3 parts

• 8 parts

Tags

CCSS.HSG.CO.A.1

Given a circle of radius r and with centre O. A point P lies in a planesuch that OP $<$  r, Then the point P Lies 

• in the interior of the circle

• on the circle

• in the exterior of the circle

• cannot say

Tags

CCSS.HSG.C.A.2

Given a circle with centre O and chords AB and CD are of lengths 5 cm each and subtend angles x⁰ and y⁰ at the centre of the circle of the circle respectively, then

• x=y

• x $<$ y

• x $>$ y

• cannot say

A portion of a circle between two points are called

• semi circle

• circumference

• segment

• arc

Tags

CCSS.HSF.TF.A.1

CCSS.HSG.C.B.5

An angle whose vertex lies on the circle and whose sides are chords of the circle

• inscribed angle 
• central angle
• arc
• radius

Tags

CCSS.HSG.C.A.2

CCSS.HSG.C.A.3

Equal _____ of the congruent circles subtend equal angles at the centers.

• Segments

• Radii

• Arcs

• Chords

Tags

CCSS.HSG.C.A.2

If chords AB and CD of congruent circles subtend equal angles at their centres, then:

• AB=CD

• AB > CD

• AB < AD

• None of above

If there are two separate circles drawn apart from each other, then the maximum number of common points they have:

• 0

• 1

• 2

• 3

The angle subtended by the diameter of a semi-circle is:

• 90

• 45

• 180

• 60