Two triangles are similar. The length of a side of one of the triangles is 4times that of the corresponding side of the other. Determine the ratios of the perimeters and the areas of the polygon.

Can someone check if i did this right since i really want to make sure it’s correct. if you do you so much

What are the triple angle formulas? is it related to double angle identities?

Fracisco's game involves 3 green, 2 yellow, 4 red, and 3 black marbles. if he randomly draws three marbles from the bag, without replacement, what is the probability that he will draw yellow, and then red, and then black? a)1/192 b)1/72 c)3/220 d)1/55