s = akar r2+t2
s =akar 49+576
s =akar 625
s = 25
L = πr (r + s)
L = 22/7 . 7 ( 7 + 25)
L = 22 (32)
L = 704 ……………..Jawaban B
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s = akar r2+t2
s =akar 49+576
s =akar 625
s = 25
L = πr (r + s)
L = 22/7 . 7 ( 7 + 25)
L = 22 (32)
L = 704 ……………..Jawaban B
= 1/2× 4/3× 22/7× 343
= 718,66
V ker= 1/3×Π×r(kuadrad)
= 1/3× 22/7× 49
= 51,33
Vtot= 718,66+51,33= 769,99