Isosceles and Equilateral Triangles
Flashcard
•
Mathematics
•
10th Grade
•
Practice Problem
•
Hard
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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.
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 are equal, each measuring 60°.
3.
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°.
4.
FLASHCARD QUESTION
Front
If two angles of a triangle are equal, what type of triangle is it?
Back
It is an isosceles triangle.
5.
FLASHCARD QUESTION
Front
What is the relationship between the base angles and the vertex angle in an isosceles triangle?
Back
The base angles are equal, and the vertex angle can be found by subtracting the sum of the base angles from 180°.
6.
FLASHCARD QUESTION
Front
How do you find the vertex angle of an isosceles triangle if the base angle is known?
Back
If the base angle is known, the vertex angle can be calculated using the formula: Vertex Angle = 180° - 2(Base Angle).
7.
FLASHCARD QUESTION
Front
What is the formula for the area of a triangle?
Back
The area of a triangle can be calculated using the formula: Area = 1/2 * base * height.
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