kubus PQRSTUVW ,luas bidang QST = 24 akar 3,hitung panjang rusuk kubus

s = panjang rusuk kubus

LuasQST = 24 akar3
1/2 × s akar2 × 1/2 s akar6 = 24 akar3
1/4 akar12 × s^2 = 24 akar3

s^2 = 24 akar3 × 4/1 × 1/akar12
s^2 = 96 akar3 × 1/2akar3
s^2 = 96/2
s^2 = 48
s = akar48
s = 4 akar3 cm