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.
Let the number 6 is multiplied by be y,
6 × y - 10 = 8
6y = 18
y = 3
answer is B
<span>The perimeter of two similar triangles will be in the same ratio as any of their corresponding sides.
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The answer you are looking for is 252, because 12*7=84 and 84*3=252.