In circle Z, the m∠ABC = 57°. Find the measure of minor arc AC.
2 * 57 = 114°
15
Given: Circle S and the measure of ∠RST = 88°. What is the measure of ∠RUT?
88/2=44°
15
Secants AR and LR intersect at point R. The measure of ∠ARL is 27°. What is the value of x?
27=0.5(99-x)... x = 45
15
A circle is shown with two secants that intersect at point R. Find the value of x, the length of AP.
(x+6)*6=(10+8)*8... x=18
15
Which formula would be used to calculate any missing value for the given segments?
mx=yw *m & x must be on same side and same for w & y*
15
Given: Circle Z with chords QL and ES. Using the information labeled on the circle, find the length of QL.
15*18=9(x+21); x=9; QL = 9+9+21 = 39
15
LO and SO are tangent to circle T. Find the length of LT.
6x-5=15x-32; x=3; LT=3+7=10
15
The circumference of circle J is 72π. What is the length of minor arc NK? Leave your answer in the form #*π.
(145/360)*72π = 29π
15
A section of a circular sign is shown. What is the area of this section of the sign? Round your answer to the nearest tenth.
(92/360)(π(12)^2)=115.6
15
What is the equation of the circle shown on the graph?
(x+1)^2 + (y-2)^2 = 25
15
A circle has a diameter with endpoints (−2,−3) and (6, -3). What is the equation of the circle?
(x-2)^2 + (y+3)^2 = 16
15
The equation of a circle is given. Determine the center of the circle and the length of the diameter.
Center: (1, -5) Diameter: 7*2=14
20
Jack started writing the equation of circle O as follows. He knows that a point with coordinates (2, 10) lies on circle O. What number should Jack place in the blank to finish writing the equation?
52
15
Circle G has a center at (7, 5) and a diameter of 12 units. Which point lies on circle G?
b) (13, 5)
15
Which one of the following sets of numbers could represent the three sides of an acute triangle?
d) 8^2 + 13^2 > 20^2
15
What is the sum of the exterior angles of a convex polygon with 45 sides?