Interior angles in Polygons and Exterior angles of triangles

Flashcard
•
Mathematics
•
9th Grade
•
Hard
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16 questions
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1.
FLASHCARD QUESTION
Front
What is the formula to calculate the sum of interior angles of a polygon?
Back
The sum of interior angles of a polygon with n sides is given by the formula: (n - 2) × 180°.
2.
FLASHCARD QUESTION
Front
How many sides does a polygon have if the sum of its interior angles is 1080°?
Back
An octagon has 8 sides, and its interior angles sum to 1080°.
3.
FLASHCARD QUESTION
Front
What is the sum of the interior angles of a pentagon?
Back
The sum of the interior angles of a pentagon is 540°.
4.
FLASHCARD QUESTION
Front
What is the measure of each interior angle of a regular hexagon?
Back
Each interior angle of a regular hexagon measures 120°.
5.
FLASHCARD QUESTION
Front
How many sides does a dodecagon have?
Back
A dodecagon has 12 sides.
6.
FLASHCARD QUESTION
Front
What is the measure of an exterior angle of a triangle?
Back
The measure of an exterior angle of a triangle is equal to the sum of the two opposite interior angles.
7.
FLASHCARD QUESTION
Front
What is the sum of the exterior angles of any polygon?
Back
The sum of the exterior angles of any polygon is always 360°.
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