Classify Triangles

Front

What is a triangle that has one right (90 degree) angle?

Back

Right triangle

Front

Any triangle that contains one angle that measures exactly 90 degrees is a _________ triangle.

Back

Right

Front

What is a triangle that has one obtuse (greater than 90 degrees) angle?

Back

Obtuse triangle

Front

An obtuse triangle is any triangle that has one angle that measures ___________ 90 degrees.

Back

Greater than

Front

Which of these triangles is made up of 3 angles that each measure less than 90 degrees?

Back

Acute triangle

Front

What is a triangle with all sides of different lengths called?

Back

Scalene triangle

Front

What do you call a triangle with at least two sides of equal length?

Back

Isosceles triangle

Front

What is the sum of the angles in any triangle?

Back

180 degrees

Front

What type of triangle has all angles measuring less than 90 degrees?

Back

Acute triangle

Front

What type of triangle has one angle measuring more than 90 degrees?

Back

Obtuse triangle