How many sides does a triangle have?
What is the sum of three angles of a triangle?
An angle which is greater than 90˚ is called ______ angle.
Which ancient Greek philosopher studied triangles?
Which triangle has all equal sides?
Which triangle has no equal sides?
Which triangle has two equal sides?
What is the third angle of the triangle when two angles are 44° and 66°?
A triangle can have only ___ right angle(s).
An angle which is less than 90˚ is called _______ angle.