tolong bantu ngerjain please pake caranya

Mata Pelajaran : Matematika
Materi : Bangun Datar

a. AC = AB/cos 30°
= 30/(1/2 √3)
= 60/√3
= 20√3 cm
BC = AB tan 30°
= 30 × 1/3 √3
= 10√3 cm


Luas = panjang × lebar
= AB × BC
= 20× 10√3
= 200√3 cm²