Page 86 - NUMINO Challenge_D2
P. 86
3 Draw the body of rotation when two plane shapes are glued to both
sides of the rotation axis as shown below and rotated around the
rotation axis.
4 Find the maximum surface area of the cylinder made by rotating a
rectangle with a perimeter of 12 cm around the rotation axis. (The
length and width of the rectangle are whole numbers.)
83Geometry
sides of the rotation axis as shown below and rotated around the
rotation axis.
4 Find the maximum surface area of the cylinder made by rotating a
rectangle with a perimeter of 12 cm around the rotation axis. (The
length and width of the rectangle are whole numbers.)
83Geometry
