
Triangle Sum Theorem
Presentation
•
Mathematics
•
7th Grade
•
Practice Problem
•
Medium
Standards-aligned
Chynna Glover
Used 13+ times
FREE Resource
9 Slides • 8 Questions
1
Do Now
What is the value of x in this equation?
3 x + 4 = − 62
Record your answer and fill in the bubbles on your answer document.
Be sure to use the correct place value.
2
Lesson Objective
Demonstration of
Learning
(7.11 C) I will be able to write and solve
equations using geometry concepts,
including the sum of the angles in a
triangle, and angle relationships
Date
Given 4 problems, I will be able to write and
solve equations using geometry concepts,
including the sum of the angles in a
triangle, and angle relationships 4/4 times
or with 100% accuracy.
3
How can you use angle relationships to solve problems?
Essential Question
4
Academic Vocabulary
❖ Vertical Angles
❖ Adjacent Angles
❖ Complementary Angle
❖ Supplementary Angles
5
Let's review from our past lessons!
Remember the following for each problem:
6
Fill in the Blanks
Type answer...
7
Review!!!
8
Fill in the Blanks
Type answer...
9
10
The front of the top story of a house is shaped like an isosceles triangle. The measure of the angle at the top of the triangle is 70°. Find the measure of each of the base angles.
11
Use the diagram and find the value of x.
Also, find the measures of ∠ A and ∠ B
12
Multiple Choice
45°
90°
180°
360°
13
Multiple Choice
Find the measure of the missing angle.
47
57
53
133
14
Fill in the Blanks
Type answer...
15
Multiple Choice
The measures of two angles in a triangle are shown in the diagram.
Which equation can be used to find the value of x?
A 64° + 2 x = 180°
B 2(64°) + x = 180°
C 64° + 2x = 360°
D 2(64°) + x = 360°
16
Multiple Choice
Find the measure of the indicated angle.
135°
55°
45°
60°
17
Multiple Choice
An isosceles triangle has base angles that each measure 52°. Which equation can be used to find b, the measure of the third angle of this isosceles triangle in degrees?
A 104° + 2b = 180°
B 104° + b = 180°
C 52° + 2b = 180°
D 52° + b = 180°
Do Now
What is the value of x in this equation?
3 x + 4 = − 62
Record your answer and fill in the bubbles on your answer document.
Be sure to use the correct place value.
Show answer
Auto Play
Slide 1 / 17
SLIDE
Similar Resources on Wayground
12 questions
Probability Compound Events
Presentation
•
7th Grade
12 questions
Writing Equivalent Expressions
Presentation
•
7th Grade
11 questions
Discounts!!! :)
Presentation
•
7th Grade
11 questions
Mark Up, Tax and Discounts
Presentation
•
7th Grade
14 questions
Gratuity
Presentation
•
7th Grade
14 questions
Scale Factor Review
Presentation
•
7th Grade
14 questions
Expressions Mixed Review
Presentation
•
7th Grade
12 questions
Percent Increase and Decrease
Presentation
•
7th Grade
Popular Resources on Wayground
24 questions
PBIS-HGMS Day 10
Quiz
•
6th - 8th Grade
10 questions
HCS SCI 03 Summer School Review 3
Quiz
•
3rd Grade
11 questions
Home Scope
Quiz
•
7th - 8th Grade
15 questions
HCS SCI 05 Summer School Assessment 3 Review
Quiz
•
5th Grade
35 questions
Lufkin Road Middle School Student Handbook & Policies Assessment
Quiz
•
7th Grade
18 questions
Geo 11.3 Area of Circles and Sectors
Quiz
•
9th - 11th Grade