Angles

Estimating (degrees) With Reference (Level 1)

This math topic focuses on estimating angles in degrees, specifically comparing a given angle to estimate a second angle. This skill is an essential part of the Geometry - Angle Basics unit. Students are presented with illustrations and must choose the closest estimate from multiple choices. The progression of questions is designed to reinforce a practical understanding of angle estimation, pivotal for developing spatial reasoning and geometry skills.

Work on practice problems directly here, or download the printable pdf worksheet to practice offline.

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Angles - Estimating (degrees) With Reference Worksheet

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Angles - Estimating (degrees) With Reference
1
If the first angle is 30°, what is a good estimate for the second angle?
An svg image showing a math problem
a
200º
b
110º
c
100º
d
145º
e
130º
f
45º
2
If the first angle is 15°, what is a good estimate for the second angle?
An svg image showing a math problem
a
195º
b
30º
c
125º
d
165º
e
75º
f
205º
3
If the first angle is 75°, what is a good estimate for the second angle?
An svg image showing a math problem
a
145º
b
90º
c
180º
d
35º
e
185º
f
140º
4
If the first angle is 30°, what is a good estimate for the second angle?
An svg image showing a math problem
a
65º
b
145º
c
70º
d
15º
e
155º
f
95º
5
If the first angle is 60°, what is a good estimate for the second angle?
An svg image showing a math problem
a
250º
b
25º
c
215º
d
75º
e
220º
f
135º
6
If the first angle is 90°, what is a good estimate for the second angle?
An svg image showing a math problem
a
190º
b
215º
c
120º
d
140º
e
205º
f
75º
7
If the first angle is 75°, what is a good estimate for the second angle?
An svg image showing a math problem
a
160º
b
155º
c
60º
d
205º
e
f
165º
8
If the first angle is 60°, what is a good estimate for the second angle?
An svg image showing a math problem
a
105º
b
100º
c
215º
d
145º
e
45º
f
185º