cara nya gmn yaa!!??? terima kasih banyak!!.....

L alas kerucut = 616
22/7 . r² = 616
r² = 7/22 . 616
r² = 196
r = 14

s = √t² + r²
= √48² + 14²
= √2500
= 50

Ls = πrs
= 22/7 . 14 . 50
= 2200 cm²