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Lj. OBC÷60 cm² = 90°÷60°
90°÷60° x 60 cm²
Lj. OBC = 90 cm²
nb:
» tanda ÷ kalau ditulis jadi per/ pecahan (soalnya di hp nggak bisa)
Maaf ya kalau salah, semoga membantu:)
= 90* x 720(K) : 360*
= 180 cm
Maaf klo salah