Tabung dengan jari jari 7cm dan tinggi 20 cm.... Hitung=a.)volume b.)luas permukaan

r= 7 cm
t= 20 cm
Ditanya= V? Dan LP?

V= πr²t
V= 22/7 x 7 x 7 x 20
V= 22 x 7 x 20
V= 154 x 20
V= 3080 cm³

LP= 2πr (r+t)
LP= 2 x 22/7 x 7 (7+20)
LP= 2 x 22 (27)
LP= 44 x 27
LP= 1188 cm²

Hopefully this is the best for you, stay focus and be the best, Buddy :)

a. v=πr2t
=22/7. 7.7.20
=22.7.20
=154.20
=3080
b. lp=2πr(r+t)
=2.22/7.7(7+20)
=2.22.27
=44.27
=1188