Isosceles Triangle and Equilateral Triangle

Flashcard
•
Mathematics
•
9th - 12th Grade
•
Hard
+2
Standards-aligned
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15 questions
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1.
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 equal.
Tags
CCSS.4.G.A.2
2.
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 measure 60 degrees.
Tags
CCSS.4.G.A.2
3.
FLASHCARD QUESTION
Front
What is the vertex angle in an isosceles triangle?
Back
The vertex angle is the angle opposite the base of the isosceles triangle, where the two equal sides meet.
4.
FLASHCARD QUESTION
Front
How do you find the measure of the base angles in an isosceles triangle?
Back
The base angles can be found using the formula: Base Angle = (180 - Vertex Angle) / 2.
5.
FLASHCARD QUESTION
Front
What is the sum of the interior angles of a triangle?
Back
The sum of the interior angles of any triangle is always 180 degrees.
Tags
CCSS.8.G.A.5
6.
FLASHCARD QUESTION
Front
If two angles of a triangle are equal, what can be said about the triangle?
Back
If two angles of a triangle are equal, the triangle is isosceles.
Tags
CCSS.2.G.A.1
7.
FLASHCARD QUESTION
Front
What is the relationship between the sides and angles in an equilateral triangle?
Back
In an equilateral triangle, all sides are equal, and all angles are equal to 60 degrees.
Tags
CCSS.4.G.A.2
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