Since the base of a cone is a circle, we substitute 2 π r for p and π r 2 for B where r is the radius of the base of the cylinder. So, the formula for the lateral surface area of a right cone is L . S . A = π r l , where l is the slant height of the cone.
OpenStudy (i_need_help_please):
okay.. what do i do from there?
OpenStudy (i_need_help_please):
@Roxy.girl
Still Need Help?
Join the QuestionCove community and study together with friends!
Sign Up
OpenStudy (roxy.girl):
Put the numbers in the given formula
OpenStudy (i_need_help_please):
is it 49.2?
OpenStudy (i_need_help_please):
@Roxy.girl
OpenStudy (welshfella):
lateral area = pi r (sqrt (h^2 + r^2)
OpenStudy (i_need_help_please):
is it 49.2? @welshfella
Still Need Help?
Join the QuestionCove community and study together with friends!
Sign Up
OpenStudy (i_need_help_please):
@Roxy.girl
OpenStudy (i_need_help_please):
my computers about to die can someone please just let me know?
OpenStudy (welshfella):
OH you want the slant height so I gave you the wrong formula
LSA = pi * r * h where h = slant height
OpenStudy (i_need_help_please):
is lsa the lateral area?
OpenStudy (i_need_help_please):
so 7.4?
Still Need Help?
Join the QuestionCove community and study together with friends!
Sign Up
OpenStudy (welshfella):
603 pi = 26 * pi * h
h = 603 pi / 26 pi = 603 / 26 = the answer