document.write( "Question 969942: Find the total surface area of a cone of base radius 8cm and vertical angle 60 \n" ); document.write( "
Algebra.Com's Answer #592866 by macston(5194)![]() ![]() You can put this solution on YOUR website! . \n" ); document.write( "The vertical angle is 60 degrees so a 30-60-90 triangle is formed with the height as the shorter leg, the radius as the longer leg, and the slant height as the hypotenuse. \n" ); document.write( "To find the surface area we need the slant height (hypotenuse) \n" ); document.write( "For a 30-60-90 right triangle:(radius=longer leg,hypotenuse=slant height) \n" ); document.write( ". \n" ); document.write( " \n" ); document.write( ". \n" ); document.write( " \n" ); document.write( ". \n" ); document.write( " \n" ); document.write( ". \n" ); document.write( " \n" ); document.write( ". \n" ); document.write( "The total surface area of a cone is area of base + lateral surface area: \n" ); document.write( "A=surface area; r=radius=8cm; s=slant height=9.24cm \n" ); document.write( ". \n" ); document.write( " \n" ); document.write( " \n" ); document.write( " \n" ); document.write( " \n" ); document.write( " \n" ); document.write( " \n" ); document.write( " \n" ); document.write( " \n" ); document.write( " \n" ); document.write( " \n" ); document.write( " \n" ); document.write( " \n" ); document.write( " \n" ); document.write( " \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " |