The altitude of an equilateral triangle is 5 cm. Find the length of a side
Let "a" be the side of an equilateral triangle.
altitude will fall on the midpoint of opp. side
Hence This makes a right triangle with "a/2" as base "a" as hypotnuse
and altitude as height
So using Pythagoras Theorem
Thus
Hence
-ve value for length is inappropriate So the answer is tell me incase you can't digest this cake