
Learn how to determine the missing variable given an isosceles triangle
Interactive Video
•
Mathematics
•
11th Grade - University
•
Practice Problem
•
Hard
Wayground Content
FREE Resource
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5 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the first step in solving for a missing angle in a triangle?
Guess the value of the angle
Use a protractor
Measure the angle directly
Set up an equation with a variable
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How can you identify an isosceles triangle?
By finding two sides with tick marks
By looking for two equal angles
By checking if all sides are different
By ensuring all angles are 90 degrees
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What equation is set up for the isosceles triangle in the video?
3X + 5 = 2X - 7
3X - 5 = 2X + 7
3X - 7 = 2X + 5
3X = 2X + 5
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the value of X after solving the equation?
12
10
15
7
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What operation is performed after subtracting 2X from both sides of the equation?
Add 7 to both sides
Subtract 5 from both sides
Multiply both sides by 2
Add 5 to both sides
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