Unit Test Answers

Line segment ON is perpendicular to line segment ML.

Which is true regarding secants and chords?

Circle O has a circumference of 36π cm.

Circle A is shown. Secant W Y intersects tangent Z Y at point Y outside of the circle. Secant W Y intersects circle A at point X. Arc X Z is 105 degrees and arc W Z is 175 degrees.

Line segments XY and ZY are tangent to circle O.

Circle O is shown. Chords K M and J L intersect at point A. The measure of arc K J is 170 degrees. The measure of arc L M is 80 degrees.

AD and MN are chords that intersect at point B.

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

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

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

In circle T, ∠PTQ ≅ ∠RTS.

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

The diagram below shows the partial construction of which shape?

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

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

The diameter of one circle is represented by 12x. The diameter of another circle is represented by . What is the ratio of the radii of the two circles?

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.

Segments RT and SU are diameters of circle O.

Circle D is inscribed with triangle A B C. The measure of arc A B is 76 degrees. Point E is on the circle between points B and C.

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

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 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?

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.

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