Unit Test — Unit test Answers

Arc QVT measures 156°.

Line EF is tangent to circle G at point A.

What is the center of a circle represented by the equation (x−5)2+(y+6)2=42?

Consider circle N with radius 30 cm and radians.

A regular polygon is drawn in a circle so that each vertex is on the circle and is connected to the center by a radius. Each of the central angles has a measure of 40°. How many sides does the polygon have?

Consider circle C with angle ACB measuring radians.

All tangents to the circle are congruent and form a square. The perimeter of square ACEG is 24 cm.

Circle O is shown. Line segments C O And A O are radii. Lines are drawn from points C and A to point B to form chords B C and B A. Angle C B A is 80 degrees.

What is the radius of a circle whose equation is (x – 7)2 + (y – 10)2 = 4?

Two circles are concentric if they have the same center.

Circle O has a circumference of approximately 28.3 cm.

is tangent to circle P at point Q.

Points A, B, C, and D lie on circle M. Line segment BD is a diameter. The measure of arc CD equals the measure of arc DA.

Angle K measures 67º and angle L measures 119°.