A spinner with seven equal - sized sections was used to play a game. It was used 250 times in the first game. Of those 250 times the arrow landed on 7 a total of 64 times. The same spinner was used 178 times in the second game. What is the probability of landing on 7 in the second game, based on the results of
the first game?

Okay so for every triangle has three angles that always add up to 180 degrees. and to tell the difference between whether they are secure, right or obtuse is that acute: has one angle that is less than 90 degrees. right triangle means there is at least one angle that is exactly 90 degrees. and an obtuse angle has an angle that is bigger than 180 degrees. i’ll do #13 as an example: 13. 40 and 50 so if every triangle has 180 degrees 40+50= 90 degrees then180-90= 90 degrees so the third angle is 90 degrees and because this triangle has a 90 degree angle it means it is a right triangle