What is an equilateral triangle?
Introduction to Triangles

Flashcard
•
Mathematics
•
9th - 12th Grade
•
Hard
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15 questions
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1.
FLASHCARD QUESTION
Front
Back
A triangle with all three sides of equal length and all three angles measuring 60°.
2.
FLASHCARD QUESTION
Front
What is the sum of the interior angles of a triangle?
Back
180°.
3.
FLASHCARD QUESTION
Front
What is a right triangle?
Back
A triangle that has one angle measuring 90°.
4.
FLASHCARD QUESTION
Front
What is an isosceles triangle?
Back
A triangle with at least two sides of equal length and the angles opposite those sides are equal.
5.
FLASHCARD QUESTION
Front
What is a scalene triangle?
Back
A triangle with all sides of different lengths and all angles of different measures.
6.
FLASHCARD QUESTION
Front
How do you find the perimeter of a triangle?
Back
Add the lengths of all three sides.
7.
FLASHCARD QUESTION
Front
What is the formula for the area of a triangle?
Back
Area = 1/2 * base * height.
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