Unit Test — Unit test Answers

In circle T, ∠PTQ ≅ ∠RTS.

Circle B is shown. Line segments A B and C B are radii. The length of A B is 6. Sector A B C is shaded.

Circle C is shown. Radius A has a length of r.

Which statements about circle O are true? Select three options.

Circle D is shown. Angle A C B intercepts arc A B. Arc A B has a measure of 76 degrees.

Circle C is shown. Secants U W and Y W intersect at point W outside of the circle. Secant U W intersect the circle at point V and secant Y W intersects the circle at point X.

Circle O has a circumference of 36π cm.

A circle is shown. Secants D E and A E intersect at point E outside of the circle. Secant D E intersects the circle at point C and secant A E intersects the circle at point B. The length of D C is 1, the length of C E is x + 4, the length of A B is 11, and the length of B E is x + 1.

Angle D is a circumscribed angle of circle O.

Circle A is shown. Tangents L M and N M intersect at point M outside of the circle. Arc L N is 270 degrees.

Which circle has a radius that measures 10 units?

What is the radius of a circle whose equation is (x + 5)2 + (y – 3)2 = 42?

In circle O, and are diameters. The measure of arc AB is 55° and the measure of arc CD is 25°.

Angle BCD is a circumscribed angle of circle A. Angle BAC measures 53°.

A Ferris wheel has a diameter of 42 feet. It rotates 3 times per minute. Approximately how far will a passenger travel during a 5-minute ride?

Circle T is shown. Angle Q S R intercepts arc Q R. Angle Q S R is 52 degrees.

Which equation represents the circle described?The radius is 2 units. The center is the same as the center of a circle whose equation is x2 + y2 – 8x – 6y + 24 = 0.

AD and MN are chords that intersect at point B.

Circle D is shown with the measures of the minor arcs.