What is an acute triangle

The video tutorial explains the concept of acute angles and acute triangles. It begins by defining an acute angle as one that is less than 90 degrees. The tutorial then describes an acute triangle as a triangle with three acute angles, emphasizing that these angles are not necessarily equal. The video further elaborates on the characteristics of acute triangles, highlighting that each angle can differ in size.

What is the defining characteristic of an acute angle?

• It is exactly 90 degrees.

• It is exactly 180 degrees.

• It is more than 90 degrees.

• It is less than 90 degrees.

How many acute angles does an acute triangle have?

• Three

• One

• None

• Two

Which of the following is true about the angles in an acute triangle?

• All angles are equal.

• All angles are right angles.

• All angles are obtuse.

• All angles are acute.

Are the angles in an acute triangle always equal?

• No, they are always obtuse.

• Yes, they are always right angles.

• No, they are not always equal.

• Yes, they are always equal.

What is a unique feature of the angles in an acute triangle?

• They are all obtuse.

• They are all right angles.

• They are all different.

• They are all equal.