AnswersOH-Geometry BProving a Quadrilateral Is a Parallelogram

Figures in the Coordinate Plane Answers

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4

The vertices of a quadrilateral in the coordinate plane are known. How can the perimeter of the figure be found?

A
Use the distance formula to find the length of each side, and then add the lengths.
B
Use the slope formula to find the slope of each of side, and then determine if the opposite sides are parallel.
C
Use the slope formula to find the slope of each of side, and then determine if the consecutive sides are perpendicular.
D
Use the distance formula to find the length of the sides, and then multiply two of the side lengths.
8

LMNP is a parallelogram.

Question illustration
A
The length of LM is and the length of MN is .
Option A
B
The slope of LP and MN is –2.
C
LM ∥ PN
D
LP ⊥ PN
9

In the diagram, WZ=.

Question illustration
A
units
Option A
B
units
Option B
C
units
Option C
D
units
Option D

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