
7.3: Triangles
Presentation
•
Mathematics
•
5th - 8th Grade
•
Medium
Standards-aligned
Rick Little
Used 205+ times
FREE Resource
7 Slides • 15 Questions
1
7.3: Triangles
Identify and classify triangles and find missing angle measures.
2
A triangles can be classified by it's side lengths.
3
Multiple Choice
Based on the side lengths of this triangle, what classification would it belong to?
Scalene
Isosceles
Equilateral
Neither
4
Multiple Choice
Based on the side lengths of this triangle, what classification would it belong to?
Scalene
Isosceles
Equilateral
Neither
5
Multiple Choice
Based on the side lengths of this triangle, what classification would it belong to?
Scalene
Isosceles
Equilateral
Neither
6
A triangles can be classified by it's angle measures.
7
Multiple Choice
Based on the angle measures of this triangle, what classification would it belong to?
Acute
Right
Obtuse
Equilateral
8
Multiple Choice
Based on the angle measures of this triangle, what classification would it belong to?
Acute
Right
Obtuse
Equilateral
9
Multiple Choice
Based on the angle measures of this triangle, what classification would it belong to?
Acute
Right
Obtuse
Equilateral
10
Multiple Choice
Based on the angle measures of this triangle, what classification would it belong to?
Acute
Right
Obtuse
Equilateral
11
Triangles are typically classified by both their angle measure and their side lengths.
12
Multiple Choice
Classify the triangle buy it's angle measures and it's side lengths.
Right Isosceles triangle
Acute Scalene triangle
Obtuse Isosceles triangle
Equilateral triangle
13
Multiple Choice
Classify the triangle buy it's angle measures and it's side lengths.
Right Isosceles triangle
Acute Scalene triangle
Obtuse scalene triangle
Equilateral triangle
14
Multiple Choice
Classify the triangle buy it's angle measures and it's side lengths.
Right Isosceles triangle
Acute Scalene triangle
Obtuse scalene triangle
Equilateral triangle
15
The 3 angles of ANY triangle add up to
180°This is also refered to as the Triangle Sum Theorem
16
Multiple Choice
Find the measure of the missing angle in the triangle.
90°
45°
135°
180°
17
Multiple Choice
Find the measure of the missing angle in the triangle.
90°
45°
130°
50°
18
Multiple Choice
Find the measure of the missing angle in the triangle.
90°
58°
122°
180°
19
Multiple Choice
Find b.
36°
45°
90°
144°
20
Multiple Choice
Find the measure of the missing angle in the triangle.
90°
45°
135°
180°
21
What did we learn today about triangles?
Triangles can be classified by their side lengths
Triangles can be classified by their angle measures
Triangles can be classified by both side lengths and angle measure
The sum of the angles of ANY triangle is 180°
22
Today's Assignment
7.3 Triangles Quizziz
7.3: Triangles
Identify and classify triangles and find missing angle measures.
Show answer
Auto Play
Slide 1 / 22
SLIDE
Similar Resources on Wayground
19 questions
Finding Volume
Presentation
•
6th - 8th Grade
18 questions
Area and Perimeter Review
Presentation
•
4th - 9th Grade
18 questions
7th grade intigers
Presentation
•
6th - 7th Grade
17 questions
Volume of a Rectangular Prism
Presentation
•
6th - 8th Grade
20 questions
Triangles
Presentation
•
6th - 9th Grade
14 questions
Math review
Presentation
•
5th - 7th Grade
18 questions
Seasons and Earth's Tilt
Presentation
•
6th - 8th Grade
18 questions
Geometry: Polygons
Presentation
•
4th - 8th 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
25 questions
Multiplication Facts
Quiz
•
5th Grade
15 questions
Rounding Decimals
Quiz
•
5th Grade
20 questions
Rational and Irrational Numbers
Quiz
•
8th Grade
16 questions
Proportional and Non Proportional Relationships in Tables, Graphs, and Equations
Quiz
•
7th Grade
20 questions
Constant of Proportionality
Quiz
•
7th Grade
20 questions
Halloween Trivia
Quiz
•
7th Grade
15 questions
Mastering Multiplication Facts 1-10
Quiz
•
5th Grade
15 questions
One-Step Equations
Quiz
•
7th Grade