How can you find the surface area of a composite solid made up of prisms ? (Help)
Accepted Solution
A:
Oh, this is easy. For any prism, you find the surface area by finding the are of all the sides. I will post all surface area formulas here, for reference Cube:
Surface area = 6 × a2
Right circular cylinder:
Surface area = 2 × pi × r2 + 2 × pi × r × h
pi = 3.14 h is the height r is the radius
Rectangular prism:
Surface area = 2 × l × w + 2 × l × h + 2 × w × h
l is the length w is the width h is the height
Sphere:
Surface area = 4 × pi × r2
pi = 3.14 r is the radius
Right circular cone:
Surface area = pi × r2 + pi × r ×( √(h2 + r2))
pi = 3.14 r is the radius h is the height l is the slant height
Right square pyramid:
Surface area = s2 + 2 × s × l
s is the length of the base h is the height l is the slant height