tolong jawab pake cara

cos a = 0,6 = 6/10
cos = samping/miring = 6/10
cot = samping/depan

cari dulu panjang sisi depan dengan rumua phytagoras
de = √10^2 - 6^2 =√100 -36 = √64 = 8cm

jadi cot a = 6/8 = 3/4 = 0,75