How do you find the perimeter of a triangle if the altitude of an equilateral triangle is 32cm?
Ia a is a side length, altitude =
So, the perimeter = 3a =
This is solvable by comparing to a standardised triangle and then using ratios.
The perimeter of the standardised equilateral triangle is
The 'altitude' of the standardised triangle is
The given 'altitude' in the question is 32 cm
Let the length of 1 side be
Let the perimeter be
Then by ratio of
Multiply by 1 but in the form of
As an approximate figure