Types of Triangles

What is a triangle?

• A three-sided polygon.

• A four-sided polygon.

• A shape with no sides.

• A two-dimensional circle.

What is an equilateral triangle?

• A triangle with all sides of different lengths and angles of varying degrees.

• A triangle that has one angle greater than 90 degrees.

• A triangle with all three sides equal and all angles equal to 60 degrees.

• A triangle that has two sides equal and one angle equal to 90 degrees.

What is an obtuse triangle?

• An obtuse triangle has one angle that is greater than 90 degrees.

• An obtuse triangle has all angles less than 90 degrees.

• An obtuse triangle has two angles that are equal.

• An obtuse triangle has one angle that is exactly 90 degrees.

What is the difference between an acute triangle and an obtuse triangle?

• An acute triangle has all angles less than 90 degrees, while an obtuse triangle has one angle greater than 90 degrees.

• An acute triangle has one angle greater than 90 degrees, while an obtuse triangle has all angles less than 90 degrees.

• An acute triangle has all angles equal to 90 degrees, while an obtuse triangle has one angle less than 90 degrees.

• An acute triangle has two angles equal to 90 degrees, while an obtuse triangle has one angle equal to 90 degrees.

How can you identify an acute triangle?

• If one angle is greater than 90 degrees.

• If all three angles are equal to 90 degrees.

• If all three angles are less than 90 degrees.

• If one angle is less than 90 degrees and the others are greater.

Can a triangle have two right angles?

• Yes, a triangle can have two right angles.

• No, a triangle cannot have two right angles because the sum of angles would exceed 180 degrees.

• A triangle can have one right angle and one obtuse angle.

• A triangle can have two acute angles and one right angle.

What are the three types of triangles based on angles?

• Acute, Right, and Obtuse.

• Scalene, Isosceles, and Equilateral.

• Obtuse, Right, and Equilateral.

• Acute, Scalene, and Right.

What is a scalene triangle?

• A scalene triangle has all sides of equal lengths.

• A scalene triangle has two sides of equal lengths.

• A scalene triangle has all sides of different lengths.

• A scalene triangle has one right angle.

What is an acute triangle?

• An acute triangle has all angles less than 90 degrees.

• An acute triangle has one angle greater than 90 degrees.

• An acute triangle has all angles equal to 90 degrees.

• An acute triangle has two angles less than 90 degrees and one angle equal to 90 degrees.

What is the sum of the angles in any triangle?

• 150 degrees

• 180 degrees

• 90 degrees

• 360 degrees