Understanding Triangles

Triangles are polygons with three sides and angles. They can be classified by sides into equilateral, isosceles, and scalene triangles, each with distinct properties. Equilateral triangles have all sides and angles equal, isosceles have two equal sides and angles, and scalene have no equal sides or angles. Triangles can also be categorized by angles as acute, obtuse, or right triangles.

What is a polygon with three sides and three angles called?

• Circle

• Triangle

• Rectangle

• Square

Which type of triangle has all sides of equal length?

• Equilateral

• Right

• Scalene

• Isosceles

How many equal sides does an isosceles triangle have?

• None

• Three

• Two

• One

What is a triangle with no equal sides called?

• Equilateral

• Isosceles

• Scalene

• Right

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

• Right

• Acute

• Obtuse

• Equilateral