Unit Test Answers

In circle O, and are diameters. Arc ED measures 17°.

Circle H is shown. Line segments G H and J H are radii. The length of G H is 20. Angle G H J is 162 degrees.

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.

Circle K is shown. Tangents S T and U T intersect at point T outside of the circle. A line is drawn from point T to point R on the opposite side of the circle. It goes through center point K. Lines are drawn from points S and U to center point K.

Circle B is shown. Line segments C B, D B, and E B are radii. Angle C B E is 52 degrees and angle E B D is 160 degrees.

Given: Circle O; intercepts ; D intercepts Prove:

Which statements about the clock are accurate? Select three options.

Consider circle C with angle ACB measuring radians.

Triangle JKL is equilateral. One side of the triangle, JL, is a diameter of circle M. Which is true about line segments JK and KL?

Circle O has a circumference of approximately 28.3 cm.

Which circle shows that measures 60°?

UV and RV are secant segments that intersect at point V.

In circle O, AD and BE are diameters.

What is the center of a circle represented by the equation (x+9)2+(y−6)2=102?

is tangent to circle P at point Q.

Consider circle N with radius 30 cm and radians.

The chords intersect at point U.

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

A circular table top has a radius of 24 inches.What is the area of the table top, to the nearest square inch? Use 3.14 for .

Circle O is shown. Tangents B C and B A intersect at point B outside of the circle. The measure of the first arc formed is 146 degrees.

Which circle has a central angle that measures 40°?

Line EF is tangent to circle G at point A.

Line segment BD passes through the center of circle C, BH = a, and HD = 8.

Angle G is a circumscribed angle of circle E.

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

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