Mason is a 16-year-old sophomore in high school and just started his first job. He wants to open a savings account. Which of these will he need to
bring to the local bank branch in order to start an account? *
An adult cosigner because he is under 18
An adult cosigner because he is still a student
His tax forms from last year
His report card from last year

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