pliss jawab kak dengan cara nya juga

tinggi kerucut =
t²=s²-r² = 15²-10²=225-100=√125=5√5=11.180cm


Lp kerucut = πr(r+s)
=3, 14×10×(10+11.180)
=31, 4×21.18
=665.052 cm²

Lp tabung = 2πr(r+t)
=2×3, 14×10×(10+20)
=62.8×30
=1.884 cm²

Lp bangun = 665.052+1.884 = 2, 549.052 cm²


V kerucut = ⅓πr²t
=⅓×3, 14×10×10×11.180
=⅓×314×11.180
=⅓×3, 510.52
= 1, 170.173 cm³


V tabung = πr²t
=3, 14×10×10×20
=314×20
=6.280 cm³


Volume bangun = 1, 170.173+6.280 = 1, 176.453cm³




Maaf kalau salah :)
Semoga membantu :)