Pomis) Which of the following sentences contains a comma error? (5 points)
Оа
We left early for the airport, but a terrible accident delayed us,
Oь
Before the game started the team, warmed up to energizing music
Ос
After being infected with a virus, the computer hard drive crashed.
Oo
Our tiny canoe was overwhelmed by the sudden, intense storm.

I'm pretty sure there's a geometry rule for   anyways, if the triangle is equilateral, and the circle is circumscribed, the circle is outside of the triangle.  to find the area, you need the radius.  the radius should be a straight line from the center of the triangle to any of it's points.  draw lines from the center of the circle to each of the triangle points.  draw three more lines from the center to the middle of the sides of the triangle.  you should now have six separate 30-60-90 triangles inside of your original triangle. use your 30-60-90 rules to solve for the radius, then the circumference. 

Idon't know. the question you are trying to ask doesn't make sense.