Unit 12 Circles in a Coordinate Plane Test Review
Authored by Kelly Stazinski
Mathematics
9th - 12th Grade
12 covered
Used 14+ times
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20 questions
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1.
DROPDOWN QUESTION
10 mins • 1 pt
The polygon circumscribes a circle. What is the perimeter of the polygon? (a)
Answer explanation
If two tangent segments to a circle share a common endpoint outside the circle, then the two segments are congruent.
Tags
12.1.18
2.
DROPDOWN QUESTION
10 mins • 1 pt
In the figure to the right, if AC = 16 and BC = 13, what is the radius? Round to the nearest tenth. (a)
Answer explanation
AB^2 + BC^2 = AC^2
AB^2 + 13^2 = 16^2
AB^2 + 169 = 256
AB^2 = 87
AB = sqrt (87)
AB = 9.327
= 9.3 (rounded to nearest tenth)
Tags
12.1.3
3.
DRAG AND DROP QUESTION
10 mins • 1 pt
Determine whether a tangent is shown in the diagram. (a)
Answer explanation
Converse of Pythagorean Theorem: The line is tangent to the circle if and only if
5^2 + 15^2 = 16^2.
If 5^2 + 15^2 = 16^2, then yes, there is a tangent to the circle.
If 5^2 + 15^2 does not equal 16^2, then no, there is not a tangent to the circle.
Tags
12.1.15
4.
MULTIPLE CHOICE QUESTION
10 mins • 1 pt
20 degrees
40 degrees
60 degrees
10 degrees
Tags
12.2.1
5.
MATH RESPONSE QUESTION
10 mins • 1 pt
Find the value of x.
Mathematical Equivalence
ON
Tags
12.2.8
6.
DROPDOWN QUESTION
10 mins • 1 pt
Find the value of x. Round to the nearest tenth. (a)
Tags
12.2.14
7.
MATH RESPONSE QUESTION
10 mins • 1 pt
Mathematical Equivalence
ON
Tags
12.3.7
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