Sebuah tabung punya tinggi 8 cm dan diameter alasnya 14 cm. hitunglah

A. l.s = phi r2 t
= 22/7 x 7 x 7 x 8
=1232
b. l.p = 2 phi r (r+t)
=2×22/7×7 (7+8)
=308(15)
=4620
c. lptt = phi r (r+2t)
= 22/7×7 (7+2.8)
=154(23)
=3542
d. vt = 1/3 phi r2 t
= 1/3 x 22/7 x 7 x 7 x 8
=410,6
semoga membantu