Answer:
The triangle is not equilateral.
Step-by-step explanation:
Distance formula:
Distance from (a, a) to (-a, -a):
Distance from (-a, -a) to (-3a, 3a):
Distance from (-3a, 3a) to (a, a):
The three sides do not have the same length, so the triangle is not equilateral.
x+4
1/3 (3x+12)
1/3×3x+1/3×12
x = 2
- 2 + 2x = - x + 2 + x
2x + x - x = 2 + 2
2x = 4
x = 4/2
220 yards or A
2*60=120
15*1760=26400
26400÷120=220