Circle and Angles, Circumference Area Arcs Chords

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 AB and CD are two chords of a circle intersecting at point E, as per the given figure. Then:

• ∠BEQ > ∠CEQ

• ∠BEQ = ∠CEQ

• ∠BEQ < ∠CEQ

• None of the above

If the angles subtended by two chords of a circle or of congruent circles at the centre are equal, the chords are ——–

• equal

• unequal

• different

• none of above

In the figure, if O is the centre of a circle, then the measure of ∠ACB is:

• 80⁰

• 100⁰

• 40⁰

• 60⁰

Solve for x (arc WQ)

• x = 49.5

• x = 45

• x = 99

• x = 147

Solve for Arc MN

• 45°

• 75°

• 110°

• 70°

Find the red minor arc and its measure. Then find the blue major arc and its measure.

• AB, 135; ADB, 225

• ADB, 225; AB, 135

In circle Z, arc WUX=160.

Find arc UX.

• 40

• 80

• 160

• 180

What is the measure of arc NM?

• 116

• 117

• 118

• 119

• 19

Solve for the indicated Arc

• 130°

• 230°

• 115°

• 75°