Classifying Triangles

Which of the following is NOT a term to classify triangles by their angles?

• acute

• equilateral

• obtuse

• right

Tags

CCSS.4.G.A.2

If all of the triangle side are different lengths, the triangle is an isosceles triangle.

• True

• False

Tags

TEKS.MATH.4.6C

What is the correct term if the triangle has one 90 degree angle?

• scalene

• acute

• obtuse

• right

Tags

CCSS.4.G.A.2

What are the two ways to classify triangles?

• By the angles and number of sides

• By the angles and side lengths

• By the side lengths and the size of the triangle

• By the angles and the how many points

Tags

CCSS.4.G.A.2

A triangle can be classified as an isosceles triangle if there are two equal sides.

• True

• False

Tags

CCSS.4.G.A.2

Which term is the classification of a triangle by an angle less than 90 degrees?

• scalene

• equilateral

• acute

• right

Tags

CCSS.4.G.A.2

What are the three ways to classify triangles by their sides?

• equilateral, right, isosceles

• scalene, obtuse, right

• equilateral, isosceles, scalene

• acute, right, isosceles

Tags

CCSS.4.G.A.2

A triangle with all equal sides and one 90 degree angle is what kind of triangle?

• acute equilateral

• right equilateral

• right scalene

• acute isosceles

Tags

CCSS.4.G.A.2

What does the term scalene mean?

• all sides equal

• two sides equal

• 90 degree angle

• all sides not equal

Tags

CCSS.4.G.A.2

A triangle can have three right angles.

• True

• False

Tags

CCSS.8.G.A.5