use a pair of compasses and ruler only to construct a triangle ABC such that BC equals to 5 cm a b c equals to 45 degree and ac B equals to 60 degree measure ab and ac​

Google will togoh

38+105= 143, 39+104=143, and you will find then adding the numbers on opposite sides, moving inwards yields the answer 138 every time. because of this, you’re going to multiply 138 times the number of pairs, which is 34. therefore, 34*138= 4692(i’m sorry if it’s the wrong numbers, but it’s the right concept)