Lines and Vertices
A triangle with an angle that measures greater than a right angle is called this.
What is an obtuse triangle?
A triangle with all equal sides and 3 acute angles is called by this name.
What is an equilateral triangle?
These are the names you would use to classify a triangle with a right angle and only 2 equal sides.
What is a right triangle and an isosceles triangle?
This quadrilateral has at least one pair of parallel sides.
What is a trapezoid?
This is the number of vertices an octagon has.
What is 8?
This is the number of degrees all the angles in a triangle add up to.
What is 180 degrees?