Here's the solution,
The given triangle is an <u>equilateral triangle</u>, because it's all angles measure 60° each
now,
Area of an equilateral triangle :
=》

where,
=》

=》

=》

or
=》

A and D
Put 3 in the equations and solve
I'm not 100% sure, but I'm pretty sure it's 1/12, 1/12, 1/12, 1/12
Distance traveled should be on y axis
hours should be on x axis
increments should be 5