document.write( "Question 955449: A child's block is in the shape of half a cylinder. (It has a picture and it's like and the arc thing, it looks like a semicirle to me tho). The block is 10cm wide, 5 cm high and 3.5 cm thick. Find the surface area. The answer is 35 + 42.5pi in. I don't get how to get to that answer. Thanks! \n" ); document.write( "
Algebra.Com's Answer #583668 by macston(5194)\"\" \"About 
You can put this solution on YOUR website!
For 2 half circles(top+bottom)\"A%5B1%5D\"=\"Area=%28pi%29r%5E2\"
\n" ); document.write( "... \"A%5B1%5D\"=\"%28pi%29%285%5E2cm%5E2%29=25%28pi%29cm%5E2\"
\n" ); document.write( "For curved side(1/2 circumference*height)\"A%5B2%5D\"=\"Area=%28pi%29r%2Ah\"
\n" ); document.write( "...\"A%5B2%5D\"=\"%28pi%29%285cm%29%283.5cm%29=17.5%28pi%29cm%5E2\"
\n" ); document.write( "...\"A%5B1%5D%2BA%5B2%5D=42.5%28pi%29cm%5E2\"
\n" ); document.write( "For flat side \"A%5B3%5D\"=\"Area=height%2Adiameter\"
\n" ); document.write( "...\"A%5B3%5D\"=\"%283.5cm%29%2810cm%29=35cm%5E2\"
\n" ); document.write( "Total surface area=\"42.5%28pi%29cm%5E2%2B35cm%5E2\" I don't know where the inches came from.
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