mohon bantuannya juga

Luas Arsir = ABD + ABC – 2.ABE
ABD = ½ × 18 × (24-8) = 9 × 16 = 144
ABC = ½ × 18 × 24 = 9 × 24 = 216
2.ABE = 2 × ½ × 18 × 8 = 18 × 8 = 144

Luas Arsir = ABD + ABC – 2.ABE
= 144 + 216 – 144
= 216 cm²

Jadi, luas daerah arsir adalah 216 cm² (opsi D).

bismillah
((½ x 18 x 24) + (½ x 18 x (24 - 8)) - 2(½ x 18 x 8) =
(216 + (½ x 18 x 16)) - 2 . 72 =
(216 + 144) - 144 =
360 - 144 =
216 cm² (pilihan D)
maaf kalau salah