 
 <translate> Since the area of a square is sides squared, the area of the square - shaped street is 100 * 100 = 10000 square meters. The area of the forest is three times the area of the square - shaped street, a total of 3 * 10000 = 30000 square meters. If the number of trees per square meter in the forest is 4, there are 4 * 30000 = 120000 trees in the forest. So the final answer is 120000. <hau> Tun da yanki na murabba'i ne gefuna squared, yankin na square - siffar titi ne 100 * 100 = 10000 murabba'in mita. Yankin gandun daji ya ninka na titi mai siffar murabba'i sau uku, jimlar 3 * 10000 = murabba'in mita 30000. Idan yawan bishiyoyi a kowace murabba'in mita a cikin gandun daji shine 4, akwai 4 * 30000 = 120000 bishiyoyi a cikin gandun daji. Saboda haka amsar karshe ita ce 120,000. 