Unit Test — Unit test Answers

Consider circle Y with radius 3 m and central angle XYZ measuring 70°.

Line segments XY and ZY are tangent to circle O.

In circle T, ∠PTQ ≅ ∠RTS.

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

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

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

AD and MN are chords that intersect at point B.

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.

A parabola and its focus are shown on the graph. The vertex of the parabola is at (0,0).

Circle G and X connect at point Y. The length of G Y is 10 centimeters and the length of Y X is 16 centimeters.

A parabola with a vertex at (0,0) has a directrix that crosses the negative part of the y-axis.

In circle D, ∠EDH ≅ ∠EDG.

Angle D is a circumscribed angle of circle O.

A point is on a circle if the distance from the center of the circle to the point is equal to the

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

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

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