What is the surface area of the figure shown? (Use 3.14 for π.) 178.98 in.2178.98 in.3235.5 in.2235.5 in.3What is the surface area of the figure shown? 740 ft 21,124 ft 21,316 ft 2932 ft 2
Accepted Solution
A:
we know that Part 1) [surface area of a cone without base]=π*r*l r=3 in l=slant height ----> 6 in [surface area of a cone without base]=π*3*6------> 56.52 in²
[surface area of a cylinder]=π*r²+2*π*r*h------> only one base r=3 in h=5 in [surface area of a cylinder]=π*r²+2*π*r*h [surface area of a cylinder]=π*3²+2*π*3*5-----> 122.46 in²
[surface area of the composite figure]=56.52+122.46-----> 178.98 in²
the answer Part A) is 178.98 in²
Part B) [surface area of the composite figure] =12*16+2*12*7+2*16*7+5*12+5*16+13*16----> 932 ft²