A cone shaped megaphone has a radius of 15 cm and a slant height of 20 cm a megaphone has an open bottom what is the literal surface area of the megaphone in square centimeters use 3.14 for pi
To find the literal surface area of the megaphone, we need to calculate the areas of the curved surface and the bottom circle.
The curved surface area can be found using the formula:
Curved Surface Area = π * radius * slant height
Substituting the given values, we have:
Curved Surface Area = 3.14 * 15 cm * 20 cm
Curved Surface Area = 942 cm²
The bottom circle has an area given by:
Circle Area = π * radius^2
Substituting the given radius, we have:
Circle Area = 3.14 * 15 cm^2
Circle Area = 706.5 cm²
Since the megaphone has an open bottom, the circle area is not included in the literal surface area. So, the literal surface area of the megaphone is equal to the curved surface area.
Therefore, the literal surface area of the megaphone is:
Literal Surface Area = 942 cm².