[tex]\large\boxed{\tt\bf\red{\downarrow\uparrow~soal~\downarrow\uparrow}}[/tex]
Sebuah kerucut memiliki Volume 770 cm, tingginya 15 cm. maka jari-jari kerucut adalah?
[tex]\large\boxed{\tt\bf\purple{\uparrow\downarrow~jawab~\downarrow\uparrow}}\\\\[/tex]
V = [tex]\tt\red{\frac{1}{3}}[/tex] πr²t
-> 770 cm³ =[tex]\tt\red{\frac{1}{3}}[/tex] × [tex]\tt\green{\frac{22}{7}}[/tex] × r² × 15 cm
-> 770 cm³ = [tex]\tt\red{\frac{330}{21}}[/tex] × r²
-> 770 cm³ × 21 = 330 cm × r² = 16.170 cm³.
-> r² = [tex]\tt\blue{\frac{16.170}{330}}[/tex]
-> r² = 49 cm²
-> r = [tex]\tt\pink{\sqrt{49}}[/tex] cm² = [tex]\boxed{\tt\red{7~cm}}[/tex]
[tex]\large\boxed{\boxed{\boxed{\tt\bf\purple{answer~by~\star~aye~\star}}}}[/tex]
V : [tex] \sf \frac{1}{3} [/tex] × π × r² × t
V : [tex] \sf \frac{1}{3} × \frac{22}{7}[/tex] × r² × t
r² : 770 × [tex] \sf \frac{21}{(22×15)}[/tex]
r² : 47
r : √47
r : 7 cm
[tex]\\[/tex]
[tex]{\colorbox{black}{\color{blue}{{\color{red}{\boxed{\color{it}{ Answer }}}} \: \: \: {\color{gold}{\boxed{\color{gold}{ \it{ by : }}}{ \: \: \: {\color{lime}{\boxed{\it{\color{lime}{ laland }}}}}}}}}}}[/tex]
