SAS only. The 3rd side cannot be proven.
Question is unclear to me ,, can you rewrite it in a nicer way so i can answer?
If you do 39.80/ 3 it would give you 13.2667miles and since the tip was not added that’s when you don’t do anything with that number and 3 because every mile you pay 3$
Yes, every equilateral triangle is acute because the angles are always congruent(identical) and 60 degrees which is acute. But I may be wrong. :P