1) Point A will be at (-4,4)
2) I think an equilateral triangle can't be right triangle
A = L * W
A = 4 3/4 * 3 2/5.....turn them into improper fractions
A = 19/4 * 17/5
A = 323/20 or 16 3/20 yds^2 <==
30:6
divide both by a common multiple
LCM: 6
5:1