ini gimna pakek cara tiga tiga nya ya

3.
a. Volume = volume tabung + volume kerucut
Volume = (phi × r²t) + (⅓ × phi × r² × t)
Volume = (22/7 × 7² × 15) + (⅓ × 22/7 × 7² × (36-15)
Volume = 16170 + 154/3 × 21
Volume = 16170 + 1078 = 17248cm³
b. Volume = volume tabung + volume kerucut
Volume = (phi × r² × t) + (⅓ × phi × r² × t)
Volume = (3,14 × 6² × 14) + (⅓ × 3,14 × 6² × 14)
Volume = (1582,56 + 527,52) = 2110,08 cm³
c. Volume = volume krucut + vokume tabung + volume kerucut
Volume = (⅓ × phi × r² × t) + (phi × r² × t) + (⅓ × phi × r² × t)
Volume = (⅓ × 22/7 × 3,5² × 6) + (22/7 × 3,5² × 6) + (⅓ × 22/7 × 3,5² × 9)
Volume = (77) + (231) + (115,5)
Volume = 423,5