3.1 - 3.4 Flashcard Prep

Front

Back

32°

Front

A triangle with two equal sides is ________________________ isosceles.

Back

always

Front

Name this triangle by its angle and sides: A triangle with one right angle and all sides of different lengths.

Back

right, scalene

Front

The legs of an isosceles triangle are ________________________ congruent.

Back

always

Front

CF, BE, and AD are the medians of the triangle. If BF = 10, find AF.

Back

10

Front

What is the sum of the interior angles of a triangle?

Back

180°

Front

In a right triangle, what is the relationship between the lengths of the sides?

Back

The square of the hypotenuse is equal to the sum of the squares of the other two sides (Pythagorean theorem).

Front

What type of triangle has all sides of different lengths?

Back

Scalene triangle.

Front

What is an isosceles triangle?

Back

A triangle with at least two sides of equal length.

Front

What is the definition of a median in a triangle?

Back

A line segment from a vertex to the midpoint of the opposite side.