Jari jari alas suatu kerucut 7 cm dan panjang garis pelukisnya 13 cm.Hitunglah: a.tinggi kerucut b.volume kerucut c.luas sisi kerucut
tolong bantu jawab yaa...
permatapu3maharanir = 7cm s = 13cm a) t^2 = s^2 - r^2 t = akar 169 - 49 = akar 120 = 10,9544512 b) v = 1/3 pi r^2 t = 1/3 22/7 49 10,9544512 = 562,328495cm^3 c) L = pi r ( s + r ) = 22/7 . 7 . 20 = 440cm^2 Mohon maaf apabila ada kesalahan
s = 13cm
a) t^2 = s^2 - r^2
t = akar 169 - 49 = akar 120 = 10,9544512
b) v = 1/3 pi r^2 t
= 1/3 22/7 49 10,9544512
= 562,328495cm^3
c) L = pi r ( s + r )
= 22/7 . 7 . 20
= 440cm^2
Mohon maaf apabila ada kesalahan