Answer:
860.55 mm²
Explanation:
The surface area of an hexagonal prism, also known as an octahedron, is given by the following formula (since we have the apothem):
S= 6*b*(a+h)
where b = is the side of the base, a is the apothem length, and h = the height
S = 6 * 8 * (4√3 + 11) = 48 * 17.92812 = 860.55 sq mm
Could have also have used another formula without the apothem:
S =3 * √3 * b² + 6 * b * h
S = 3 * √3 * 8² + 6 * 8 * 11 = 3√3 * 64 + 528 = 332.55 + 528 = 860.55 sq mm
The Battle of Antietam /ænˈtiːtəm/, also known as the Battle of Sharpsburg, particularly in the South, was fought on September 17, 1862, near Sharpsburg, Maryland and Antietam Creek as part of the Maryland Campaign.
Planned murders of Hews gupsies communists and others by the German government
The use of electronic pay
The Answer is D. They help to expand slavery westward
Hopefully this help I just took the test
