PROBLEM SOLVING - tempat bertanya PR Kaskuser (SD, SMP, SMA) - Part 2
Gw ada soal udah di coba coba ga dapet 1. Given that /\ABC with AB=4cm and AC=6cm. The D point is located on BC so that AD represent division line. If the area /\ABC is 10cm, so the area of /\ABD? 2. In /\ABC given that cos(B+C)= 9/40, AC=10cm and AB=8cm , then the length of BC?