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Mathematics 12 Online
OpenStudy (i_need_help_please):

PLEASE HELP 1 QUESTION - AREA WILL FAN AND MEDAL

OpenStudy (i_need_help_please):

OpenStudy (i_need_help_please):

@ILovePuppiesLol @mjdennis @mathmale @MrCoolGuy @welshfella @wwhitlock

OpenStudy (roxy.girl):

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

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

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?

OpenStudy (welshfella):

603 pi = 26 * pi * h h = 603 pi / 26 pi = 603 / 26 = the answer

OpenStudy (i_need_help_please):

is 7.4 right?

OpenStudy (welshfella):

divide 603 by 26 and you have your answer

OpenStudy (i_need_help_please):

23.2?

OpenStudy (welshfella):

right

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