Question

In a triangle on what basis to decide the base of the triangle

Answer 1

Just remember that base and height are perpendicular. Therefore, the base is '11' since it is perpendicular to the height of 13.4. To find the area of the triangle on the left, substitute the base and the height into the formula for area.

Answer 2

The area of a triangle is ½ (b × h), where b is the base and h is the height. The base of a triangle is any one of the sides, and the height of the triangle is the length of the altitude from the opposite vertex to that base.