Tek 5.5a Triangles

What words can be used to classify a triangle by its SIDES?

• right

• isosceles

• acute

• equilateral

• scalene

Tags

5.5

What words can be used to classify a triangle by its ANGLES?

• isosceles

• acute

• right

• equilateral

• obtuse

Tags

5.5

A triangle is a polygon.

• False

• True

Tags

5.5

Look at the sides and angles of this triangle. Which type of triangle is pictured?

• Equilateral Triangle

• Right Isosceles Triangle

• Obtuse Scalene Triangle

• Obtuse Equilateral Triangle

Tags

CCSS.4.G.A.2

Label the sides of this 30-60-90 triangle.

b

a

c

hypotenuse

long leg

short leg

Tags

NC.M2.G-SRT.12

The sum of all three angles of a triangle is always equal to ____⁰.

ONLY type the exact number.

Tags

5.5

• isosceles

• equilateral

• scalene

• right

Tags

5.5

Triangles can be classified based by the ​ (a)   of the sides or by the ​ (b)   of the angles.

• length

• measurements

• area

• volume

• dimensions

Tags

5.5

Equilateral triangles can also be classified as isosceles triangles because...

• they can be classified as anything.

• they have all acute angles

• they are not scalene triangles.

• they have at least 2 congruent sides

Tags

5.5

Mark all the sides and angles that make this a scalene obtuse triangle.

Tags

5.5