Classifying triangles by sides

In geometry, a triangle is...

• a shape with 4 sides.

• a geometric figure with 5 sides.

• a shape with 3 sides.

• a place where some believe ships and planes disappear.

How many types of triangles are there?

• 2

• 3

• 4

• 5

What are the three types of triangles based on their sides?

• obtuse, acute, and right

• parallel, perpendicular, and rays

• scalene, isosceles, and equilateral

• points, line segments, and lines

In geometry, we don't use the word equal when two sides are the same. Which word is used instead?

• different sides

• similar sides

• congruent sides

• friendly sides

Which one of the following in one type of triangle classified by its sides?

• square

• quadrilateral

• scalene

• obtuse

A scalene triangle is...

• a triangle with four sides.

• a triangle with 3 congruent sides.

• a triangle with more than 3 sides.

• a triangle with no congruent sides.

An isosceles triangle is ...

• a triangle with 3 congruent sides.

• a triangle with 4

  congruent sides.

• a triangle with no congruent sides.

• a triangle with at least 2 congruent sides.

What does the word equilateral sound more like?

• water

• equal and maybe sides in spanish (lados)

• soccer

• some kind of science thing

What is an equilateral triangle?

• A triangle with different sides

• A triangle with four sides that are congruent (same)

• A triangle with two sides that are congruent.

• A triangle with 3 congruent sides.

All equilateral triangles are isosceles.

• TRUE

• FALSE