dahlialovy99
jari jarinya itu d:2= 16:2= 8 cm a. tinggi kerucut L selimut=π×r×s 427,04= 3,14×8×s 427,04=25,12× s s= 427,04:25,12 s=17 cm [( panjang garis pelukis)
*** tinggi kerucut t =√ s²-r² = √ 17²-8² =√ 289-64 =√225 =15 cm b. Volume Kerucut V= ⅓×π×r²×t = ⅓×3,14×8²×15 = 10048 cm² ◑﹏◐ jangan lupa kasih aku jawaban terbaik◑﹏◐
Ls=phi.r.s
427,04=3,14.8.s
S=427,04/3,14.8
S=17
Phitagoras
8,15,17
Tingginya = 15
B.
Vlume kerucut = 1/3.phi.r^2.t
Vlume kerucut = 1/3.3,14.8^2.15
Vlume kerucut = 3,14.64.5
Vlume kerucut = 1004,8
a. tinggi kerucut
L selimut=π×r×s
427,04= 3,14×8×s
427,04=25,12× s
s= 427,04:25,12
s=17 cm [( panjang garis pelukis)
*** tinggi kerucut
t =√ s²-r²
= √ 17²-8²
=√ 289-64
=√225
=15 cm
b. Volume Kerucut
V= ⅓×π×r²×t
= ⅓×3,14×8²×15
= 10048 cm²
◑﹏◐ jangan lupa kasih aku jawaban terbaik◑﹏◐