Equilateral and Isosceles Triangles
Flashcard
•
Mathematics
•
9th - 12th Grade
•
Practice Problem
•
Hard
+4
Standards-aligned
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15 questions
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1.
FLASHCARD QUESTION
Front
What is an equilateral triangle?
Back
An equilateral triangle is a triangle in which all three sides are of equal length and all three angles are equal, each measuring 60 degrees.
Tags
CCSS.4.G.A.2
2.
FLASHCARD QUESTION
Front
What is an isosceles triangle?
Back
An isosceles triangle is a triangle that has at least two sides of equal length and the angles opposite those sides are also equal.
Tags
CCSS.4.G.A.2
3.
FLASHCARD QUESTION
Front
What is the vertex angle in a triangle?
Back
The vertex angle is the angle formed by the two equal sides of an isosceles triangle.
4.
FLASHCARD QUESTION
Front
How do you identify the base of an isosceles triangle?
Back
The base of an isosceles triangle is the side that is not equal in length to the other two sides.
5.
FLASHCARD QUESTION
Front
What are congruent sides in a triangle?
Back
Congruent sides are sides that are of equal length.
Tags
CCSS.8.G.A.2
6.
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
7.
FLASHCARD QUESTION
Front
How do you find the measure of an unknown angle in an isosceles triangle?
Back
To find the measure of an unknown angle in an isosceles triangle, use the fact that the two base angles are equal and the sum of all angles is 180 degrees.
Tags
CCSS.8.G.A.5
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