Marco is baking a cake for a party. The cake is in the shape of a right cylinder circular. He needs to buy frosting for the cake but doesn’t know the surface area of the cake is the diameter of the cake pan is 13 inches and the height is 4 inches what is the surface area he needs to frost use 3.14. For rr would the answer be 1287.88 inches. 265.33 inches or 428.61 inches or 163.28 inches
The formula for the surface area of a cylinder is 2πr(r+h), where r is the radius and h is the height.
Given that the diameter of the cake pan is 13 inches, the radius (r) would be half of that, so r = 6.5 inches. The height (h) is given as 4 inches.
Plugging these values into the formula, we get:
Surface area = 2 * 3.14 * 6.5(6.5+4)
Surface area = 2 * 3.14 * 6.5(10.5)
Surface area = 2 * 3.14 * 68.25
Surface area = 428.61 inches
Therefore, the correct answer is 428.61 inches.