Acute, Right, and Obtuse Triangles

Front

In an ______________ triangle, all three angles are less than 90 degrees.

Back

acute

Front

What type of triangle has one angle greater than 90 degrees?

Back

obtuse

Front

What type of triangle has one angle exactly 90 degrees?

Back

right

Front

An ______________ triangle has all sides of different lengths.

Back

scalene

Front

An ______________ triangle has at least two sides that are the same length.

Back

isosceles

Front

An ______________ triangle has all sides of the same length.

Back

equilateral

Front

What type of triangle is formed when one angle is acute and the other two angles are also acute?

Back

acute

Front

What type of triangle is formed when one angle is obtuse and the other two angles are acute?

Back

obtuse

Front

What is the sum of the angles in any triangle?

Back

180 degrees

Front

If a triangle has one right angle, what type of triangle is it?

Back

right