This math topic covers the concept of estimating angles in degrees, an essential part of the basics of geometry. Specifically, given a reference angle, the students' task is to provide a good estimation for the measurement of a second angle. A crucial aspect of understanding geometrical figures and their properties, the topic provides practice through illustrative questions where the images aid in visual estimation.
Work on practice problems directly here, or download the printable pdf worksheet to practice offline.
Practice:
Estimating (degrees) With Reference
Complete these online problems with 80% or 4 correct answers in a row. Results are immediate.
If the first angle is 105°, what is a good estimate for the second angle?
Angles - Estimating (degrees) With Reference Worksheet
| Math worksheet on 'Angles - Estimating (degrees) With Reference (Level 2)'. Part of a broader unit on 'Geometry - Angle Basics' Learn online: app.mobius.academy/math/units/geometry_angle_basics/ |
1
| If the first angle is 30°, what is a good estimate for the second angle? |
a
| 125º |
b
| 95º |
c
| 145º |
d
| 85º |
e
| 135º |
f
| 15º |
2
| If the first angle is 105°, what is a good estimate for the second angle? |
a
| 240º |
b
| 180º |
c
| 90º |
d
| 220º |
e
| 10º |
f
| 140º |
3
| If the first angle is 60°, what is a good estimate for the second angle? |
a
| 215º |
b
| 205º |
c
| 115º |
d
| 105º |
e
| 195º |
f
| 45º |
4
| If the first angle is 45°, what is a good estimate for the second angle? |
a
| 170º |
b
| 140º |
c
| 200º |
d
| 220º |
e
| 130º |
f
| 60º |
5
| If the first angle is 30°, what is a good estimate for the second angle? |
a
| 185º |
b
| 85º |
c
| 125º |
d
| 15º |
e
| 155º |
f
| 175º |
6
| If the first angle is 30°, what is a good estimate for the second angle? |
a
| 85º |
b
| 15º |
c
| 65º |
d
| 95º |
e
| 185º |
f
| 135º |
7
| If the first angle is 45°, what is a good estimate for the second angle? |
a
| 30º |
b
| 90º |
c
| 190º |
d
| 150º |
e
| 200º |
f
| 170º |