Question

[HELP] Soal no 20 plus cara ya
thx

Answer 1

1/2 AC = √(10² - 8²) = 6 cm
d2 (non-arsir) = 12 cm - 2(2 cm) = 10 cm
L (non-arsir) = 1/2(16 . 10) = 80 cm²
L total = 1/2(16 . 12) = 96 cm²
L arsir = 96 - 80 = 16 cm²