Triangles (Interior & Exterior)
Flashcard
•
Mathematics
•
8th Grade
•
Practice Problem
•
Medium
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15 questions
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1.
FLASHCARD QUESTION
Front
What is a triangle?
Back
A triangle is a polygon with three edges and three vertices. It is one of the basic shapes in geometry.
Tags
CCSS.2.G.A.1
2.
FLASHCARD QUESTION
Front
What are the types of triangles based on sides?
Back
1. Equilateral Triangle: All sides are equal. 2. Isosceles Triangle: Two sides are equal. 3. Scalene Triangle: All sides are different.
Tags
CCSS.4.G.A.2
3.
FLASHCARD QUESTION
Front
What are the types of triangles based on angles?
Back
1. Acute Triangle: All angles are less than 90 degrees. 2. Right Triangle: One angle is exactly 90 degrees. 3. Obtuse Triangle: One angle is greater than 90 degrees.
Tags
CCSS.4.G.A.2
4.
FLASHCARD QUESTION
Front
What is the sum of the interior angles of a triangle?
Back
The sum of the interior angles of a triangle is always 180 degrees.
Tags
CCSS.8.G.A.5
5.
FLASHCARD QUESTION
Front
How do you find the measure of an unknown angle in a triangle?
Back
To find an unknown angle, subtract the sum of the known angles from 180 degrees.
Tags
CCSS.8.G.A.5
6.
FLASHCARD QUESTION
Front
What is an exterior angle of a triangle?
Back
An exterior angle is formed by one side of the triangle and the extension of an adjacent side.
7.
FLASHCARD QUESTION
Front
What is the relationship between an exterior angle and the interior angles?
Back
The exterior angle is equal to the sum of the two opposite interior angles.
Tags
CCSS.8.G.A.5
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