PROPERTIES OF TRIANGLES

Front

How many altitudes can a triangle have?

Back

three

Front

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

Back

Median

Front

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

Back

Exterior angle

Front

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

Back

180⁰

Front

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

Back

60°

Front

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

Back

Equilateral triangle

Front

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

Back

Isosceles triangle

Front

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

Back

45⁰

Front

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

Back

60⁰

Front

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

Back

altitude