Two trains, old steamy and chug-a-lug, are 290 miles apart from each other and headed for the same station. they started toward the station at 8: 00 a. m. if they are both set to arrive at 10: 30 a. m. and old steamy is going 6.14 mph, how fast must chug-a-lug be going? how far does chug-a-lug have to travel?

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