Name the line and plane shown in the diagram.
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Are O, N, and P collinear? If so, name the line on which they lie.
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What is another name for <1?

If m<DCF= 90 and m<ECF= 35, what is m<DCE?

If m<DCF= 90 and m<DCE= 3x + 12, and m<FCE= 4x + 1, find the value of x.

Which of the following pairs are vertical angles?

Which of the following pairs are supplementary angles?

<CDE and <FDE are supplementary angles. m<CDE= 3x + 10 and m<FDE= 6x+ 8. Find m<FDE.
True or False: <2 and <5 are adjacent angles.

True or False: <4 and <5 are complementary angles.

What is the other endpoint of the segment with midpoint -3 and endpoint -7?
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According to the graph, what is the midpoint of segment AB?

Find the distance between points A and B:
A(-5, -5) and B(7, 11)
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The midpoint of segment AB has coordinates (4, -9). Endpoint A has coordinates (-3, -5). What are the coordinates of B? Write your answer as a coordinate point in the format (a,b).
The coordinates of the endpoints of segment AB are A(-6,-5) and B(4,0). Point P is on segment AB. Determine the coordinates of point P such that AP:PB is 2:3.