Vocabulary
3.02 Use a rectangular coordinate system
and
to solve problems.
Resources
To achieve this objective, students should be able to:
grid
•
Graph and identify points with whole numbers
ordered pair
and/or letter coordinates.
point
axis
•
Describe the paths between given points on the plane.
axes
path
12
diagonal
11
A.
Graph the triangle with
east
10
9
west
vertices at (C, 4), (F, 10),
8
north
and (I, 4). What are the
7
south
coordinates of the three
6
5
points that lie on a line of
4
symmetry for this triangle?
3
2
1
0
A B C D E F G H I J K
Note:
ordered pairs
may be
(letter, number)
B.
Graph the points with the following coordinates and connect
(K, 2)
them in the order given. Draw at least two lines of symmetry
or
for the shape. Do the paths of both lines of symmetry pass
(number, number)
(4, 3)
through a common point? If so, give the coordinates for this point.
→
→
→
→
(2, 3)
(2, 9)
(8, 9)
(8, 3)
(2, 3)
Grade Three:
Geometry
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