6.8A - Triangles

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

If two angles in a triangle measure 50° and 60°, what is the measure of the third angle?

Back

70°

Front

What type of triangle has all three sides of different lengths?

Back

Scalene triangle.

Front

What type of triangle has at least two sides of equal length?

Back

Isosceles triangle.

Front

What is the largest angle in a triangle with sides measuring 5, 7, and 10?

Back

The angle opposite the side of length 10.

Front

What is an equilateral triangle?

Back

A triangle with all three sides of equal length and all angles measuring 60°.

Front

How do you find the measure of a missing angle in a triangle?

Back

Subtract the sum of the known angles from 180°.

Front

What is a right triangle?

Back

A triangle that has one angle measuring 90°.

Front

If a triangle has angles measuring 30°, 60°, and 90°, what type of triangle is it?

Back

It is a right triangle.

Front

What is the relationship between the lengths of the sides and the angles in a triangle?

Back

The largest angle is opposite the longest side.