PROPERTIES OF TRIANGLES

How many altitudes can a triangle have?

A _____ connects a vertex of a triangle to the mid-point of the opposite side.

An _____ angle of a triangle is equal to the sum of its interior opposite angles.

The total measure of the three angles of a triangle is ____

If the two angles of a triangle are 50° and 70°, then the measure of the third angle is

A triangle in which all the three sides are of equal lengths is called an ______

A triangle in which two sides are of equal lengths is called an _____

In a right angled triangle, if one angle is 45 degree then the measure of the third angle is

In a triangle if all angles are equal, then the measure of each angle is:

The perpendicular line segment from a vertex of a triangle to its opposite side is called an ____ of the triangle.