Unit Test — Unit test Answers

Circle R is shown. Tangents F G and H G intersect at point G outside of the circle to form an angle with a measure of 50 degrees. Point E is on the second arc. Arc F H has a measure of x degrees.

Consider circle N with radius 30 cm and radians.

Arc QVT measures 156°.

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

In circle O, MP is a diameter.

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

is tangent to circle P at point Q.

What is the radius of a circle whose equation is x2+y2+8x−6y+21=0?

Two chords intersect at a point inside a circle that is not the center of the circle. Which statement must be true?

In circle O, AD and BE are diameters.

On a coordinate plane, a parabola opens to the left. It has a vertex at (0, 0), a focus at (negative 2, 0), and a directrix at x = 2.

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 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.

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.

A parabola has a vertex at the origin. The focus of the parabola is located at (–2,0).

Circle O has a circumference of approximately 28.3 cm.

Circle Y is shown. Chords R T and S U intersect. Arc R S is 106 degrees. The angle that intercepts arc R S is 94 degrees.

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

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?