Special Parallelograms — Unit test Answers

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

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

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

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.

Line EF is tangent to circle G at point A.

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.

Given: Circle O; intercepts ; D intercepts Prove:

In quadrilateral QRST, measures (5x+15)°. Angle TQR measures (4x+3)°.

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

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

is tangent to circle P at point Q.

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

The chords intersect at point U.

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

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