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Geometry of Triangles - Equilateral, Solve Angle (Level 1)

This math topic focuses on understanding the properties of equilateral triangles and solving for their angles. It provides practice in determining specific angles within equilateral triangles. Each problem presents a figure of an equilateral triangle with named vertices (such as 'R', 'Q', 'S') and asks the student to identify the measure of a particular angle from multiple-choice options. This set of problems is part of a broader unit on the geometry of isosceles and equilateral triangles, aimed at developing foundational skills in triangle geometry.

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

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Equilateral, Solve Angle

Complete these online problems with 80% or 4 correct answers in a row. Results are immediate.

What do we know about angle 'S'?

60SQ

Geometry of Triangles - Equilateral, Solve Angle Worksheet

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Math worksheet on 'Geometry of Triangles - Equilateral, Solve Angle (Level 1)'. Part of a broader unit on 'Geometry - Isosceles and Equilateral Triangles' Learn online: app.mobius.academy/math/units/geometry_triangles_isosceles_equilateral_intro/
1
An svg image showing a math problem
What do we know about angle 'S'?
a
60
b
50
c
45
d
90
e
55
f
70
2
An svg image showing a math problem
What do we know about angle 'S'?
a
90
b
70
c
50
d
55
e
60
f
45
3
An svg image showing a math problem
What do we know about angle 'Q'?
a
60
b
90
c
50
d
55
e
70
f
45
4
An svg image showing a math problem
What do we know about angle 'S'?
a
70
b
45
c
55
d
50
e
90
f
60
5
An svg image showing a math problem
What do we know about angle 'R'?
a
50
b
55
c
45
d
70
e
90
f
60
6
An svg image showing a math problem
What do we know about angle 'S'?
a
60
b
70
c
50
d
90
e
55
f
45
7
An svg image showing a math problem
What do we know about angle 'R'?
a
50
b
45
c
70
d
90
e
55
f
60