tolong bantuanny Yg sebisany aja Cuma mau untuk ngoreksi

CoMy = (Area1*Y1 + Area2*Y2)/ΣArea
= (1/2 πr^2 * (10+(4r/3π)) + (20*10*5))/(1/2 πr^2 + 20*10)
= (1/2 π(10)^2 * (10+ 4(10)/3π) + 1000)/(1/2 π(10)^2 + 200)
= 9 cm

Tidak ada jawaban