1 Determine the diameter of Circle L. 30 40 10 20 2 points QUESTION 2 Using the illustration below, calculate the diameter. 3.5 mi 7 mi 10.5 mi 14 mi 2 points QUESTION 3 Park officials approved the construction of a new circular pool. They want the diameter to be 20 feet long. How long is the radius? 3 points QUESTION 4 In the diagram below, AE = 6, EB = 3, and DE = 2. Find CE. 6 3 8 9 2 points QUESTION 5 The radius is an example of a chord. True False 2 points QUESTION 6 If and AC = 15 cm, find the length of . 3 points QUESTION 7 Calculate the length of AD given AB = 7 cm, AC = 25 cm, and AE = 35. 3.5 5 25 50 2 points QUESTION 8 Calculate the length of AC given AB = 2, AE = 13.3, and AD = 1.5. Round to the nearest whole number. 3 points QUESTION 9 If AB = 5, CD = 6, and FE = 10, calculate the values of AE = 15.5 and CE = 16.5 AE = 16 and CE = 15 and . AE = 16.5 and CE = 15.5 AE = 15 and CE = 16 2 points QUESTION 10 If AB = 6.5, CD = 8, and FE = 22.5, calculate the perimeter of . QUESTION 11 If m = 268, find the measure of the corresponding minor arc. 90 268 134 92 2 points QUESTION 12 If m = 265, find the measure of the corresponding minor arc. 3 points QUESTION 13 What is the relationship between a central angle and its corresponding arc? The central angle is half the measure of the corresponding arc. The arc is half the measure of the corresponding angle. They are congruent. There is no relationship. 2 points QUESTION 14 Calculate the value of x if is the diameter. 9 18 17 152 2 points QUESTION 15 Given is the diameter, calculate the m . 3 points QUESTION 16 If = 80, what is the ? 80 120 40 20 2 points QUESTION 17 Calculate the value of x in the illustration below. 75 7.5 7.14 10 2 points QUESTION 18 Calculate the value of x in the illustration below. QUESTION 19 Calculate the m given m = 86, m = 104. 2 points QUESTION 20 Calculate the m , given m = 35 and m = 105. 140 35 70 110 2 points QUESTION 21 Calculate the value of x, given = 5x and = 2x + 25. 8.3 25 40 20 2 points QUESTION 22 Calculate the m , given m = 35 and m = 100. 3 points QUESTION 23 If m = 110, calculate the m . 3 points QUESTION 24 What is the standard equation of a circle? (x + h)2 + (y + k)2 = r (x - h)2 + (y - k)2 = r (x - h)2 + (y - k)2 = r2 (x + h)2 + (y + k)2 = r2 2 points QUESTION 25 In the standard equation of a circle, what represents the center of the circle and the radius? 3 points QUESTION 26 The hospital provides ambulance service within a 60 mile radius of the hospital. If this service area is represented graphically, with the hospital located at (0, 0), what is the equation that represents the service area? x2 + y2 = 3600 x2 + y2 = 60 (x - 60)2 + (y - 60)2 = 0 (x + 60)2 + (y + 60)2 = 0 2 points QUESTION 27 The equation of a circle is (x - 3)2 + (y - 5)2 = 81. Determine the coordinates of the center of the circle and the length of the radius. Center (-3, -5), radius is 9 Center (3, 5), radius is 9 Center (-5, -3), radius is 81 Center (5, 3), radius is 81 2 points QUESTION 28 Write the standard equation of the circle with center (-9, 5) and a diameter of 22. The graph of (x + 3)2 + (y - 3)2 = 4 is illustrated below. True False 2 points QUESTION 30 The graph of (x - 2)2 + (y - 1)2 = 2 is illustrated below. True False 2 points QUESTION 31 What is the equation of the graph below? 3 points QUESTION 32 The Nygen family wants to put a circular fence around their pool. They want it to be exactly 12 feet from the center of the pool. How many feet of fencing do they need to buy? 38 76 24 48 2 points QUESTION 33 Use the illustration below to calculate the circumference of the circle. 1.3 cm 4.08 cm 2.04 cm 5.03 cm 2 points QUESTION 34 Use the illustration below to calculate the circumference of the circle. Assume that the marked point is the center of the circle, and that the three vertices of the triangle are on the circle. 3 points QUESTION 35 Using the illustration below, calculate the area of the circle. 380 ft2 84 ft2 30.25 ft2 95 ft2 2 points QUESTION 36 Using the illustration below, calculate the area of the circle. 1021.41 162.56 510.71 255.35 2 points QUESTION 37 What is the area of a donut that is approximately 4 inches in diameter? 3 points QUESTION 38 Brandy is making a peach pie for her grandmother for Christmas. The diameter of the pie is 13 in. If half of the area of the pie was eaten after Christmas dinner, what is the area of the pie that is leftover? 165.91 in2 132.73 in2 66.37 in2 33.18 in2 2 points QUESTION 39 Taylor is making a cookie cake that has a diameter of 15 in. What is the area of a fourth of the cookie cake? 76.97 in2 56.25 in2 44.17 in2 255.35 2 points QUESTION 40 is the diameter. Calculate the area of sector (to the nearest whole number) created by . 3 points QUESTION 41 In circle A, the radius is 9 and the measure of = 135. Find the length of . 5.3 11.7 10.6 21.2 2 points QUESTION 42 The = 130 and diameter is 12. Calculate the length of