แผ่นงานUnit 12 Circles in a Coordinate Plane Test Review
คำถามทั้งหมด: 20
The polygon circumscribes a circle. What is the perimeter of the polygon? (a)
In the figure to the right, if AC = 16 and BC = 13, what is the radius? Round to the nearest tenth. (a)
Determine whether a tangent is shown in the diagram. (a)
20 degrees
40 degrees
60 degrees
10 degrees
Find the value of x.
Find the value of x. Round to the nearest tenth. (a)
Find the value of a° . The dot represents the center of the circle.
What arc does angle F intercept?
Find the value of each variable. Match the variable to its correct value.
58.5°
a
90°
b
63°
c
Find the value of x. Round to the nearest tenth.
32
3.2
12
320
Find the values of x and y. Lines that appear tangent are tangent.
x (a)
y (b)
60°
120°
Find the value of angle y.
59°
41.5°
118°
Find the value of angle z.
82°
41°
62°
144
Find the value of c using the given chord and secant lengths in the diagram shown to the left. Round answer to nearest tenth.
14.9
23.6
2.1
8.1
Write the standard equation for the circle
whose center is at (7,1) and whose radius is at 4.
(x−7)2+(y−1)2=16
(x+7)2+(y+1)2=4
(x+7)2+(y+1)2=16
(x−7)2−(y+1)2=4
Write the standard form of the equation of the circle with the given center and radius.
Center (0,0), r=10
x2+y2=10
x2+y2=100
x2−y2=10
x2−y2=100
Write the standard form of the equation of the circle with its center at (−1,0), and a radius of 6.
(x+1)2+y2=36
(x+1)2−y2=36
(x−1)2+y2=6
(x+1)2+(y+1)2=36
What is the center of the following equation:
(x−1)2+y2=36
(1,0)
(-1,0)
(0,1)
(0,-1)
What is the radius of the following equation:
(x−1)2+y2=36
6
36
1
-1
Write the standard form of the equation of the circle to the left.
(x−1)2+(y−1)2=7
(y−1)2+(y−1)2=49
(y+1)2+(y+1)2=49
แป้นคำตอบUnit 12 Circles in a Coordinate Plane Test Review
คำถามทั้งหมด: 20
20 degrees
18
150
58.5°
-a
,90°
-b
,63°
-c
3.2
60°
,120°
59°
41°
23.6
(x−7)2+(y−1)2=16
x2+y2=100
(x+1)2+y2=36
(-1,0)
6
(y+1)2+(y+1)2=49