What is plane figure with three sides?
Triangle
How many lines made up a triangle?
3 lines
How many interior angles of a triangle?
3 angles
What is the sum of interior angles of a triangle?
180 degrees
What triangle has 3 sides are equal?
Equilateral triangle
What triangle has 2 sides are equal?
Isosceles triangle
What triangle has 3 sides are different?
Scalene triangle
What triangle has one angle equal to 90 degrees?
Right triangle
What traingle has 3 angles less than 90 degrees?
Acute triangle
What triangle has one angle more than 90 degrees?
Obtuse triangle
How many degrees of the missing angle?
85 degrees
How many degrees of the missing angle?
87 degrees
How many degrees of the missing angle?
28 degrees
How many degrees of the missing angle?
50 degrees
Do this triangles are congruent?
yes
