classifying angles and triangles

Front

What is an equilateral triangle?

Back

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

Front

What is an obtuse triangle?

Back

A triangle that has one angle greater than 90°.

Front

What is an acute triangle?

Back

A triangle where all three angles are less than 90°.

Front

What is a right triangle?

Back

A triangle that has one angle equal to 90°.

Front

What is a scalene triangle?

Back

A triangle with no sides of equal length.

Front

What is an isosceles triangle?

Back

A triangle with at least two sides of equal length.

Front

What type of angle is less than 90°?

Back

Acute angle.

Front

What type of angle is exactly 90°?

Back

Right angle.

Front

What type of angle is greater than 90° but less than 180°?

Back

Obtuse angle.

Front

What type of angle is exactly 180°?

Back

Straight angle.