Half base x altitude.
Area = 0.5*base*altitude
The altitude of a triangle is measured perpindicular to its base.
1/2*base*perpendicular height or altitude in square units
is the altitude of a triangle
It depends on what other information you have. Knowing the lengths of two sides of a triangle is not enough to calculate the third. You need to have some further information: and angle, the area, the length of an altitude or a median.
Yes its perpendicular height or altitude is sometimes calculated out side the triangle depending on its shape.
The triangle's altitude is 8.7 (8.66025) cm.
It is the triangle's perpendicular altitude
A triangle has three altitudes.
The altitude line is perpendicular to the base and bisects the apex of the isosceles triangle.