Question 147268
the area of a triangle is 1/2 times the base times the height (altitude)


the area is given (84), so let any side be the base and you can find the altitude to that side
__ do this for all three sides


eg.  84=(1/2)(14)(x) __ 168=14x __ 12=x __ so the altitude to the 14" side is 12"