cylinder problem 4:
A cylinder has a radius of 7 cm and an height of 17 cm.
a) calculate the lateral area
b) calculate the surface area
c) calculate the volume
answer:
answer lateral area:
LA = 2 * r * π * h
LA = 2 * 7 * π * 17
LA = 747.69 cm²
A: The lateral area is 747.69 cm².
answer surface area:
A = 2 * r * π * (r + h)
A = 2 * 7 * π * (7 + 17)
A = 1055.58 cm²
A: The surface area is 1055.58 cm².
answer volume:
V = r² * π * h
V = 7² * π * 17 (π = 3.1415..)
V = 2 616.95 cm³
A: The volume is 2 616.95 cm³.