Penjelasan dengan langkah-langkah:
[tex] \boxed{ \tt lp = \pi r(s + r)}[/tex]
lp = πr ( s + r )
lp = 22/7 × 3,5 ( 3,5 + 4,5 )
lp = 22/7 × 3,5 ( 8 )
lp = 22/7 × 28
lp = 88
_________________________
@rasyidafd.
Lp kerucut = lingkaran + luas selimut
Lp kerucut = πr^2 + πrs
Lp kerucut = 22/7 • 3,5^2 + 22/7 • 3,5 • 4,5
Lp kerucut = 22/7 • 12,25 + 22/7 • 15,75
Lp kerucut = 38,5 + 49,5
Lp kerucut = 88 cm^2
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Penjelasan dengan langkah-langkah:
☁Penyelesaian.
[tex] \boxed{ \tt lp = \pi r(s + r)}[/tex]
lp = πr ( s + r )
lp = 22/7 × 3,5 ( 3,5 + 4,5 )
lp = 22/7 × 3,5 ( 8 )
lp = 22/7 × 28
lp = 88
_________________________
@rasyidafd.
Penjelasan dengan langkah-langkah:
Lp kerucut = lingkaran + luas selimut
Lp kerucut = πr^2 + πrs
Lp kerucut = 22/7 • 3,5^2 + 22/7 • 3,5 • 4,5
Lp kerucut = 22/7 • 12,25 + 22/7 • 15,75
Lp kerucut = 38,5 + 49,5
Lp kerucut = 88 cm^2