Thank you for posting your question here at brainly. I hope the answer will help you. Feel free to ask more questions.
The answer is $4.85;$81.85<span> which is B. </span>
a=area
b=base
h=height
you have to divide 4.86 with 1.8 it Gives you 2.7
that's your answer .
b=2.7 yd
Answer and working out attached below. Hope it helps.
Answer:
Yes, ALL equilateral triangles are similar. By definition they all have the characteristics given above, which means that they are all completely proportional, which means they are all similar.