Triangles Flashcard Review

Front

What is the sum of the angles in a triangle?

Back

The sum of the angles in a triangle is always 180 degrees.

Front

What type of triangle has two equal sides?

Back

An isosceles triangle has two equal sides.

Front

If one angle in a triangle measures 90 degrees, what type of triangle is it?

Back

It is a right triangle.

Front

What is the formula to find the third angle in a triangle if two angles are known?

Back

The third angle can be found using the formula: Third Angle = 180 - (Angle1 + Angle2).

Front

What is a scalene triangle?

Back

A scalene triangle is a triangle with all sides of different lengths.

Front

Back

Front

What is the measure of the third angle in a triangle with angles measuring 50 degrees and 60 degrees?

Back

The third angle measures 70 degrees.

Front

What is the relationship between the angles of a triangle and a straight line?

Back

The angles of a triangle sum up to 180 degrees, which is the same as a straight line.

Front

What is an equilateral triangle?

Back

An equilateral triangle is a triangle where all three sides and angles are equal.

Front

How do you set up an equation to find an unknown angle in a triangle?

Back

Set up the equation using the sum of angles: Angle1 + Angle2 + Angle3 = 180 degrees.