How many vertices in this figure?
5. They are A, B, C, D, E
What is called? (Vertex/ Triangle)
Vertex
When an angle measure EXACTLY 360 degree. It is called _________ angle. (Acute/ Full)
Full / Complete angle
BC is called _________.
base
Name this angle: _____________________ (Acute / Right) angle.
Right angle
When an angle measure 90 degree < ??? < 180 degree. It is called _________ angle. (Obtuse/ Acute)
Obtuse
This angle is called ..................... (Acute / Straight) angle.
Straight angle
AH is called ____________. (Height / Vertex)
Height
When an angle measure EXACTLY 180 degree. It is called _________ angle. (Obtuse/ straight)
straight
This angle is called ..................... (Reflex / Straight) angle.
Reflex angle
Name this angle: _________ angle. (Obtuse/ Acute)
Obtuse
This angle is called ..................... (Acute/ Right)
Acute angle
When an angle measure less than 180 degree. It is called _________ angle. (Reflex/ Acute
Reflex angle
What is the angle less than 90 degree called?
Acute angle
Fill the blank please? (Straight/ Acute/ Right)
straight
When an angle measure EXACTLY 90 degree. It is called _________ angle. (Right/ Full)
Right angle
How many vertices in this figure?
3. They are A, B, C