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= 13^ + 5^
= 169 + 25
=194 = 13.92
luas selimut : phi x r x s
luas permukaan : phi x r (r+s)
tinggal dimasuk-masukin aja.......
selimut= 3,14 x 5² x √194 = 78,5 √194
LP= 3,14 x 5² √194 + 5²x 3,14
= 78,5( 1 +√194)