Polygon Angles and Parallelograms

Flashcard
•
Mathematics
•
11th Grade
•
Hard
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15 questions
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1.
FLASHCARD QUESTION
Front
What is a parallelogram?
Back
A parallelogram is a four-sided figure (quadrilateral) where opposite sides are parallel and equal in length, and opposite angles are equal.
2.
FLASHCARD QUESTION
Front
What is the sum of the interior angles of a polygon with n sides?
Back
3.
FLASHCARD QUESTION
Front
How many sides does a polygon have if the sum of its interior angles is 900°?
Back
The polygon has 7 sides.
4.
FLASHCARD QUESTION
Front
What is the sum of the angle measures in a nonagon (9 sides)?
Back
The sum of the angle measures in a nonagon is 1260°.
5.
FLASHCARD QUESTION
Front
What is the relationship between the angles in a parallelogram?
Back
In a parallelogram, opposite angles are equal, and adjacent angles are supplementary (sum to 180°).
6.
FLASHCARD QUESTION
Front
If one angle of a parallelogram is 70°, what are the measures of the other angles?
Back
The opposite angle is also 70°, and the adjacent angles are each 110°.
7.
FLASHCARD QUESTION
Front
What is the formula to find the area of a parallelogram?
Back
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