In an isosceles triangle LMN, LM=39cm, NL=39cm and MN = 27cm, how do you calculate the height of the triangle LMN?
Consider the figure:
You can apply Pythagora's Theorem to the yellow triangle and write:
Assuming a base of
A line segment bisecting the base and perpendicular to the base and terminating at the point
By the Pythagorean Theorem
using a calculator this can be evaluated as 9approximately)