Triangles Day 1

This is a scalene triangle because ​ (a)   of the sides are ​ (b)   .

• none
• equal
• all
• 2 of the sides
• 1 of the sides
• not equal

An equilateral triangle has ​ (a)   ​ (b)   sides and ​ (c)  

• three
• congruent
• angles.
• two
• one

A right angle has ​ (a)   right angle.

• one
• three
• two
• none
• no

In order to be classified an acute triangle ​ (a)   of your ​ (b)   should be ​ (c)  

• all
• angles
• acute.
• none
• obtuse
• right
• one
• two

Label the following angles

a

b

acute

obtuse

Which of these angles is right?

What kind of triangle is this?

• Isosceles Acute

• Equilateral Acute

• Scalene Acute

• Equilateral Right

Larry and Cale are ​ (a)   ​ (b)   because both triangles have a right ​ (c)  

• both
• right
• angle.
• one
• obtuse
• acute
• angles.

A ​ (a)   is a polygon with three sides that is classified by it's ​ (b)   and ​ (c)  

• triangle
• sides
• angles.
• hexagon
• quadrilateral
• pentagon
• edges
• vertices
• corners
• rays

• Obtuse Isosceles

• Right Isosceles

• Right Obtuse

• Right Equilateral