The Euler ("OIL-er") line passes through the orthocenter ("OR-tho-SEN-ter"), circumcenter, and centroid ("SEN-troyd") in this figure. The area of this polygon can be found by halving the product of two sides and the sine of the angle opposite of the third side or by simply using Heron's formula. It is the only polygon that cannot be concave, because its angles must add to 180 degrees. For 10 point
The Euler ("OIL-er") line passes through the orthocenter ("OR-tho-SEN-ter"), circumcenter, and centroid ("SEN-troyd") in this figure. The area of this polygon can be found by halving the product of two sides and the sine of the angle opposite of the third side or by simply using Heron's formula. It is the only polygon that cannot be concave, because its angles must add to 180 degrees. For 10 points, name this polygon with three sides.
The Euler ("OIL-er") line passes through the orthocenter ("OR-tho-SEN-ter"), circumcenter, and centroid ("SEN-troyd") in this figure.
{triangle}