tolong dijawab butuh banget nihhh

MAPEL = MATEMATIKA
KELAS = 9
BAB = BRSL

Diketahui :
diameter = 20cm, maka r = 10cm
tinggi = 24cm

ditanya = luas karton ??

---------- Luas selimut kerucut ---------

- garis pelukis ( s )
s = √t² + r²
s = √24² + 10²
s = √576 + 100
s = √676
s = 26cm

luas 200 Karton = 200 × π × r × s
= 200 × 3,14 × 10cm × 26cm
= 628 × 260cm²
= 163.280cm²
= 16,328m²
= 16,33m²

jawaban D.
semoga membantu