Geometry-Angles in a Circle

Front

If arc AB = 70°, how many degrees are in ∠ ADB?

Back

35°

Front

If arc XV = 70° and ∠ YUV = 43°, what is the measure of arc YX?

Back

134°

Front

If arc SQ = 84° and ∠RPS = 26°, what is the measure of arc RS?

Back

136°

Front

If arc SQ = 92° and arc QR = 86°, what is the measure of ∠ RPS?

Back

45°

Front

Quadrilateral ABCD is inscribed in the circle. Which sentence is true?

Back

A and C are supplementary

Front

The measure of an inscribed angle is half the measure of the intercepted arc. What is this principle called?

Back

Inscribed Angle Theorem

Front

What is the relationship between opposite angles in a cyclic quadrilateral?

Back

Opposite angles are supplementary.

Front

If two chords intersect inside a circle, how do you find the measure of the angles formed?

Back

The measure of each angle is equal to the average of the measures of the arcs intercepted by the angle and its vertical angle.

Front

What is the formula for the measure of an angle formed by two tangents drawn from a point outside a circle?

Back

The angle is equal to half the difference of the measures of the intercepted arcs.

Front

What is the measure of the central angle that subtends an arc of 120°?

Back

120°