
Lesson 13 - 1 Angle Relationships in Triangles
Presentation
•
Mathematics
•
5th - 12th Grade
•
Practice Problem
•
Medium
Standards-aligned
RICHARD FREEMAN
Used 10+ times
FREE Resource
6 Slides • 1 Question
1
Properties of Triangles
Lesson 13 - 1: Angle Relationships in Triangles
2
Lesson 13 - 1 Angle Relationships in Triangles
Learning Targets:
Prove theorems about angle measures in triangles
Apply theorems about angle measures in triangles
3
Triangle Sum Theorem
Given the triangle at the right,
Cut the three angles from the triangle
Line the angles beside each other on the next slide
4
Triangle Sum Theorem
The three angles will form a line
The sum of the angles equal
180°43° + 32° +105° = 180°
5
6
Find the measure of ∠A
m∠A=180°−(30°+96°)
m∠A=180°−126°
m∠A=54°
7
Multiple Choice
What is the measure of ∠B ?
m∠B=75°
m∠B=115°
m∠B=105°
m∠B=95°
Properties of Triangles
Lesson 13 - 1: Angle Relationships in Triangles
Show answer
Auto Play
Slide 1 / 7
SLIDE
Similar Resources on Wayground
6 questions
Untitled Lesson
Presentation
•
KG - University
7 questions
Sudut & Garis
Presentation
•
1st Grade
4 questions
tro choi hinh vuông hình chữ nhật
Presentation
•
KG
6 questions
SuccessMaker Reports
Presentation
•
5th Grade - University
6 questions
Perkalian
Presentation
•
4th - 12th Grade
5 questions
PEMBAGIAN PECAHAN BIASA
Presentation
•
5th - 12th Grade
6 questions
hành vi đúng sai
Presentation
•
KG
5 questions
Multiplicação e Divisão - Formadores 25 03 2025
Presentation
•
5th Grade - University
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