Angles and Triangles

Front

If one angle of a triangle measures 75 degrees, and another angle measures 45 degrees, what is the measure of the third angle?

Back

30 degrees

Front

If one angle of a triangle measures 30 degrees, and another angle measures 60 degrees, what is the measure of the third angle?

Back

90 degrees

Front

What type of angle measures exactly 90 degrees?

Back

Right angle

Front

Which of the following triangles has at least two equal sides?

Back

Isosceles triangle

Front

What is the name of a triangle where two sides are of equal length?

Back

Isosceles triangle

Front

What is the sum of all angles in a triangle?

Back

180 degrees

Front

What do you call a triangle with all sides of equal length?

Back

Equilateral triangle

Front

What type of angle measures less than 90 degrees?

Back

Acute angle

Front

What type of angle measures more than 90 degrees but less than 180 degrees?

Back

Obtuse angle

Front

What is the name of a triangle with no equal sides?

Back

Scalene triangle