tolong dijawab please buat besok please

Bangun ruang sisi lengkung

s^2 = r^2 + t kerucut^2
s^2 = 10^2 + 24^2
s^2 = 100+576
s^2 = 676
s = √676
s = 26 cm

L kerucut = L lingkaran + L selimut kerucut
= π r r + π r s
= π r (r + s)
= 3,14 x 10 (10+26)
= 31,4 x 36
= 1130,4 cm^2

L selimut tabung = 2 π r t
= 2 x 3,14 x 10 x 20
= 6,28 x 200
= 1256 cm^2

L bangun = L kerucut + L selimut tabung
= 1130,4 + 1256
= 2386,4 cm^2 (A)

*semoga membantu. sukses selalu ^_^