Geometry – Unit 1 Practice
Recognize the Basics
Name: _____________________________!
G.CO.A.1
Date: ___________ Pd: ____
1) Darken/Highlight the appropriate parts of the figures:
a)
RS
R
S
T
b)
SR
R
S
T
c)
RS
R
S
T
d)
SR
R
S
T
e)
TS
R
S
T
f)
S
R
S
T
2) TRUE / FALSE:
a)
b)
c)
d)
e)
f)
g)
Point E lies in plane B
Points A, C, and F are collinear.
Points A, C, and F are coplanar.
Point A lies on line m and on plane B.
A line can be drawn containing points D and E.
A line can be drawn containing points A, C and E.
There exists a plane which contains points A, D, and E.
h)
Every line contained in plane B intersects CF .
i)
The intersection of AF and DC is C.
j)
k)
l)
DC lies in plane B.
Line m lies in plane B.
Plane B intersects line m at A.
m)
DC and AE are coplanar.
n)
AE and AF are coplanar.
3) Fill in the blanks below:
a) The _______ between points A and B is the set consisting of A, B, and all points on the line AB between A
and B.
b) A __________ is a segment from the center of a circle to a point on the circle.
c) An ________ is the union of two non-collinear rays with the same endpoint.
d) Perpendicular lines form ________ angles.
4) Determine if the notation (AB) is referring to a figure or a number:
a)
b)
AB + BC = AC
Figure / Number
Figure / Number
c)
d)
Find AB so that AB CD .
AB = 6
Figure / Number
Figure / Number
SNRPDP
AB intersects…
Unit 1: Foundations of Geometry
NVACS – Revised 2015-2016
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Practice – Unit 1 (cont.)
5) Determine if the angle shown between the clock hands is acute, right, or obtuse:
a)
b)
c)
acute / right / obtuse
acute / right / obtuse
6) Find and name the following:
a) AD CE
b) AB BA
c) AD BD
d)
e)
f)
g)
h)
i)
BC
BE
AB
BE
BC
BA
acute / right / obtuse
 intersection, overlap
= union, joining
BA BD
CE
BC
AD
AB
7) mL  40 . List four other names for L.
a) _______
b) _______
c) _______
d) _______
8) Answer the following:
a) XY  20 , A is the midpoint of XY , B is the midpoint of XA . What is BA?
b) CD and EF bisect each other at O. CD = 18, LM = 23. What are CO and EO?
c) 1 has twice the measure of 2 . The two angles are complementary. Find m1 and m2 .
d) Two congruent angles are also supplementary. Find the measure of both angles.
e) Find the missing angle measure:
f) Find the missing angle measure:
g) Find the missing angle measure:
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