Jawabkan no 16 dan 17
Jawaban Terkonfirmasi
16. jarak ACH dan EGB = 1/3.panjang diagonal ruang =1/3.(6√3.√3) = 1/3(18) = 6 cm
17. AC² = AB²+BC²-2AB.BC.COS 120
= 50²+40²-2.50.40.(-1/2)
= 2500+1600+2000
= 6100
AC = √6100
= 10√61