Tolongin yak. Masi bingung sama soal kek begini

Gambar 1 :
C. 3,2,4,1

Gambar 2 :
Kll ∆ sama sisi = 30 cm
3. s = 30 cm
s = 30 ÷ 3
s = 10 cm.
Luas ∆ sama sisi
= ¼ × √3 × s²
= ¼ × √3 × 10²
= 25√3 cm² D)

Gambar 3 :
Luas Bidang diagonal = 4√2
s × s√2 = 4√2
s²√2 = 4√2
s² = 4
s = 2 cm

Luas Permukaan
= 6.s²
= 6 × 2²
= 6 × 4
= 24 cm² (B)