
Classifying Triangles by Angles & Sides
Presentation
•
Mathematics
•
8th - 10th Grade
•
Easy
Standards-aligned
Hannah Crawford
Used 35+ times
FREE Resource
3 Slides • 17 Questions
1
Some text here about the topic of discussion
2
Some text here about the topic of discussion
3
Multiple Choice
How many angles does a triangle have?
4
3
2
4
Multiple Choice
What is an acute angle?
An angle that measures 90°
An angle that measures more than 90° and less than 180°
An angle that measures between 0 and 90°
Always less than 90°
An angle that measures more than 180°
5
Multiple Choice
What is an obtuse angle?
An angle that measures less than 90°
An angle that measures exactly 90°
An angle that measures more than 90° and less than 180°
6
Multiple Choice
What is a right angle?
A right angle measures exactly 180°
A right angle measures exactly 90°
A right angle is always less than 90°
7
Multiple Choice
A right triangle must have...
1 angle that equals 90° (right angle).
more than 3 angles.
two right angles.
8
Multiple Choice
Based on it's angles, what type of triangle is this?
acute triangle
obtuse triangle
right triangle
equiangular triangle
9
Multiple Choice
Based on its angles, what type of triangle is this?
Acute triangle
Obtuse triangle
Isosceles triangle
Right triangle
10
Multiple Choice
Based on its angles, what type of triangle is this?
Scalene triangle
Acute triangle
Obtuse triangle
It looks like a roof.
11
Multiple Choice
A triangle which angles are all 60° is called ...
an obtuse triangle.
an acute triangle.
an equiangular triangle.
12
Some text here about the topic of discussion
13
Multiple Choice
What are the three types of triangles based on their sides?
obtuse, acute, and right
parallel, perpendicular, and rays
scalene, isosceles, and equilateral
points, line segments, and lines
14
Multiple Choice
A scalene triangle is...
a triangle with four sides.
a triangle with 3 congruent sides.
a triangle with more than 3 sides.
a triangle with no congruent sides.
15
Multiple Choice
An isosceles triangle is ...
a triangle with 3 congruent sides.
a triangle with 4
congruent sides.
a triangle with no congruent sides.
a triangle with at least 2 congruent sides.
16
Multiple Choice
What is an equilateral triangle?
A triangle with different sides
A triangle with four sides that are congruent (same)
A triangle with two sides that are congruent.
A triangle with 3 congruent sides.
17
Multiple Choice
Based on its sides, what type of triangle is this?
Scalene
Equilateral
Isosceles
Obtuse
18
Multiple Choice
Based on its sides, what type of triangle is this?
Isosceles triangle
Scalene triangle
Acute triangle
Equilateral triangle
19
Multiple Choice
Based on its sides, what type of triangle is this?
Isosceles triangle
Obtuse triangle
Scalene triangle
Do not choose this answer or you will get it wrong.
20
Multiple Select
How do you feel about classifying triangles by their sides or angles?
I can do this ALL DAY.
I might need a bit of a refresher.
I'm getting all the words confused
What are triangles?
Some text here about the topic of discussion
Show answer
Auto Play
Slide 1 / 20
SLIDE
Similar Resources on Wayground
11 questions
Sequences of Transformations (Rigid Motions)
Presentation
•
8th - 10th Grade
16 questions
Pythagorean Theorem and Special Right Triangles
Presentation
•
9th - 11th Grade
17 questions
Geometry - Linear Pairs and Vertical Angles
Presentation
•
9th - 10th Grade
13 questions
Two- Step Equations
Presentation
•
7th - 9th Grade
10 questions
Quadrilaterals
Presentation
•
8th - 10th Grade
14 questions
Geometry Review -Transformations
Presentation
•
8th - 10th Grade
17 questions
Angle and Arcs in a Circle
Presentation
•
8th - 10th Grade
13 questions
Dilations
Presentation
•
9th - 10th Grade
Popular Resources on Wayground
10 questions
Safety Day 2026 – Student Review
Quiz
•
9th Grade
21 questions
Continents and Oceans
Quiz
•
6th Grade
20 questions
Parts of Speech
Quiz
•
5th Grade
16 questions
Subject & Predicate
Quiz
•
5th Grade
25 questions
Multiplication Facts
Quiz
•
5th Grade
12 questions
Map Skills
Quiz
•
3rd Grade
22 questions
Continents and Oceans
Quiz
•
5th Grade
15 questions
Rounding Decimals
Quiz
•
5th Grade
Discover more resources for Mathematics
20 questions
Rational and Irrational Numbers
Quiz
•
8th Grade
20 questions
Add and Subtract Integers
Quiz
•
6th - 8th Grade
20 questions
Slope from a Graph
Quiz
•
8th Grade
15 questions
Adding and Subtracting Integers
Quiz
•
6th - 8th Grade
20 questions
Proportional vs. Non-Proportional
Quiz
•
8th Grade
12 questions
Absolute Value Equations
Quiz
•
9th Grade
14 questions
finding slope from a graph
Quiz
•
8th Grade
24 questions
Explore Rigid Transformations and Congruence
Quiz
•
8th Grade