What is the sum of the interior angles of a triangle?

Exploring Angles in Polygons

Interactive Video
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Mathematics
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9th - 12th Grade
•
Hard

Lucas Foster
FREE Resource
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10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
90 degrees
180 degrees
270 degrees
360 degrees
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
If angle BCA is 180 minus 4x, and the sum of angles in a triangle is 180, what is the value of x when angle A is x and angle B is 120 degrees?
80 degrees
60 degrees
40 degrees
100 degrees
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
According to the exterior angle theorem, what does the exterior angle equal?
Half the sum of the remote interior angles
Twice the sum of the remote interior angles
Difference of the remote interior angles
Sum of the remote interior angles
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How do you prove that the exterior angle of a triangle is equal to the sum of its remote interior angles?
Using a statement-reason table
Using algebraic manipulation
Using geometric construction
Using calculus
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the sum of the interior angles of a quadrilateral?
360 degrees
540 degrees
180 degrees
720 degrees
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How many triangles can be drawn inside a hexagon to calculate its interior angles?
Six
Four
Five
Three
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the formula to find the sum of the interior angles of a polygon with n sides?
180(n-2)
n(180-2)
180n
360(n-2)
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