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Practice
Name: _____________________________
Geometry Basics
Practice Problems
Identify the proper angle.
1.
An angle less than 90 degrees.
__________________________
2.
An angle that equals 90 degrees.
__________________________
3.
2 angles whose sum equals 90 degrees.
__________________________
Draw or identify the proper quadrilateral.
4.
Parallelogram
6.
Trapezoid
Find the missing angle. (9-2.3)
7.
A = _____ degrees
130○ A
5.
Rectangle
8.
_______
Two angles are complementary. One of the angles is 50 degrees. What is
the measure of the other angle?
9.
_______
Two angles are supplementary. One of the angles is 115 degrees. What is
the measure of the other angle?
Use the drawing to answer the
following questions. (9-2.4)
A
1
4
C
6
2
B
100◦
5
7 8
10.
8 & _____
Name a pair of alternate exterior angles.
11.
7 & _____
Name a pair of corresponding angles.
12.
5 & _____
Name a pair of alternate interior angles.
Use the same drawing above to answer the following questions. (9-2.5)
13.
________
What is the measure of angle 2?
14.
________
What is the measure of angle 6?
15.
________
Name a pair of supplementary angles.
A.
4&5
B.
6&7
C.
5&7
D.
7&2
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Write the names of the given polygons. (9-3.1)
16.
8-sided
____________________
18.
10-sided
____________________
17.
4-sided
____________________
Using the formula provided, calculate the sum of the interior angles of the given polygon.
(9-3.2)
Sum of interior angles= 180(n – 2)
n = number of sides
19.
Hexagon
_____________
21.
Decagon
_____________
20.
Octagon
_____________
Find the measure of one interior angle of a regular polygon. (9-3.3)
22.
Pentagon
_____________
24.
Quadrilateral
_____________
23.
Hexagon
_____________
Find the number of sides of a regular polygon, given the total number of degrees. (9-3.4)
25.
1,260 degrees
____________
27.
3,420 degrees
____________
26.
5,760 degrees
____________
Determine the missing coordinate for the given shape. (9-3.5)
28.
(_____, _____):
A (-2, 3)
B (6, 3)
D (-2, -5)
C (?, ?)
29.
30.
2x
4x + 8
4x
3x
70
2x
x = _______
x = ________
31.
x = __________
x○
43○
128○
32.
33.
5x - 30
2x
x = ___________
2x + 20 6x
x = ____________
34.
35.
3x + 21
4x
6x
2x + 12
x = __________
x = ______________