Unit Test — Unit test Answers

Circle O has a circumference of 36π cm.

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

In circle P, diameter QS measures 20 centimeters.

Consider a circle whose equation is x2 + y2 – 2x – 8 = 0. Which statements are true? Select three options.

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.

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

Circle L is shown. Line segments K L and M L are radii. The length of K L is 12. Angle M L K is 60 degrees. Sector M L K with a 60 degree angle is shaded.

Angle D is a circumscribed angle of circle O.

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.

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

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

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.

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

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

Line segment ON is perpendicular to line segment ML.