AnswersEHS New Credit Topics in GeometryFigures in the Coordinate Plane (Sec 9-1)

Figures in the Coordinate Plane Answers

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On a coordinate plane, rhombus A B C D is shown. Point A is at (1, 1), point B is at (negative 2, negative 3), point C is at (negative 5, 1), and point D is at (negative 2, 5).

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A
10 units
B
20 units
C
units
Option C
D
units
Option D
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On a coordinate plane, parallelogram H I J K is shown. Point H is at (negative 2, 2), point I is at (4, 3), point J is at (4, negative 2), and point K is at (negative 2, negative 3).

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A
(1,−1)
B
(1,1)
C
(1,0)
D
(0,1)
3

In the diagram, WZ=.

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A
units
Option A
B
units
Option B
C
units
Option C
D
units
Option D
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.
5

On a coordinate plane, kite W X Y Z is shown. Point W is at (negative 3, 3), point X is at (2, 3), point Y is at (4, negative 4), and point Z is at (negative 3, negative 2).

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A
units
Option A
B
units
Option B
C
units
Option C
D
units
Option D
6

On a coordinate plane, trapezoid J K L M is shown. Point J is at (negative 7, 4), point K is at (negative 4, 4), point L is at (negative 2, 3), and point M is at (negative 8, 3).

Question illustration
A
+ units
Option A
B
2 + + units
Option B
C
9 + units
Option C
D
9 + + units
Option D
7

On a coordinate plane, square P Q R S is shown. Point P is at (4, 2), point Q is at (8, 5), point R is at (5, 9), and point S is at (1, 6).

Question illustration
A
The length of SP, PQ, RQ, and SR are each 5.
B
The slope of SP and RQ is and the slope of SR and PQ is .
Option B
C
The length of SQ and RP are both .
Option C
D
The midpoint of both diagonals is , the slope of RP is 7, and the slope of SQ is .
Option D
8

On a coordinate plane, quadrilateral J K L M with diagonals is shown. Point J is at (4, 5), point K is at (5, 1), point L is at (1, 2), and point M is at (1, 5).

Question illustration
A
∠M is a right angle and MK bisects ∠LMJ.
B
LM = JM = 3 and JK = LK = .
Option B
C
MK intersects LJ at its midpoint.
D
The slope of MK is –1 and the slope of LJ is 1.
9

On a coordinate plane, triangle A B C is shown. Point A is at (negative 1, 6), point B is at (negative 1, 1), and point C is at (2, 2).

Question illustration
A
5 + units
Option A
B
units
Option B
C
10 + units
Option C
D
15 units
10

On a coordinate plane, rectangle W X Y Z is shown. Point W is at (negative 6, 6), point X is at (negative 4, 0), point Y is at (negative 7, negative 1), and point Z is at (negative 9, 5).

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units
Option A
B
units
Option B
C
units
Option C
D
units
Option D

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