document.write( "Question 154402: I need to find the surface area of a christmas tree I made for my summer project. The cone shape is 22 inches tall and has a diameter of 7.5 inches. There is also a base for the cone shape. I also have a cylinder shape for the tree trunk wich is 3 inches in diameter and 5 inches in height. Please show me the calculations. I am using 2TTR(R+H) for both shapes but I do not think it is right and then I am not sure how to do the base of the cone. \n" ); document.write( "
Algebra.Com's Answer #113709 by ankor@dixie-net.com(22740)\"\" \"About 
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I need to find the surface area of a Christmas tree I made for my summer project. The cone shape is 22 inches tall and has a diameter of 7.5 inches. There is also a base for the cone shape. I also have a cylinder shape for the tree trunk which is 3 inches in diameter and 5 inches in height. Please show me the calculations. I am using 2TTR(R+H) for both shapes but I do not think it is right and then I am not sure how to do the base of the cone.
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\n" ); document.write( "First just find the surface area of the cone
\n" ); document.write( "The formula for that: SA = \"pi%2Ar%5E2\" + \"pi%2Ar%2Al\"
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\n" ); document.write( "In your problem r = 3.75 (half the diameter),
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\n" ); document.write( "l is the slanted distance of the cone,
\n" ); document.write( "that will be the hypotenuse of a triangle formed by r and h
\n" ); document.write( "l = \"sqrt%283.75%5E2+%2B+22%5E2%29\"
\n" ); document.write( "l = 22.3173 inches
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\n" ); document.write( "SA = \"pi%2A3.75%5E2\" + \"pi%2A3.75%2A22.3173\"
\n" ); document.write( "SA = 44.1786 + 262.9195
\n" ); document.write( "SA = 307.0981 sq inches
\n" ); document.write( ":
\n" ); document.write( "Add the trunk: \"pi%2Ad+%2A+h\"
\n" ); document.write( "Trunk = \"pi%2A3%2A5\"
\n" ); document.write( "Trunk = 47.1239
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\n" ); document.write( "Total; 307.0981 + 47.1239 = 354.222 sq/in (this includes the circular surface area of the bottom of the trunk)\r
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