Module 4 Lesson 13

Front

How many acute angles must an acute triangle have?

Back

3

Front

What is an "Acute" Angle?

Back

An angle that measures less than 90 degrees.

Front

Classify this triangle: Right, Scalene

Back

Right, Scalene

Front

What is a Scalene triangle?

Back

A triangle with all sides of different lengths.

Front

What is an Isosceles triangle?

Back

A triangle with at least two sides of equal length.

Front

What is an Equilateral triangle?

Back

A triangle with all three sides of equal length.

Front

What is an Obtuse triangle?

Back

A triangle with one angle measuring more than 90 degrees.

Front

What is a Right triangle?

Back

A triangle with one angle measuring exactly 90 degrees.

Front

How many sides does a triangle have?

Back

3

Front

What is the sum of the angles in a triangle?

Back

180 degrees.