Which is longer: 180 sec or 3 mins? explain how you decided.

None of them is long because 3 minutes have 180 seconds they both are equal . you will be wondering how i know it same well  one minute have 60 seconds so 60+60+60 = 180 secs

They are both equal because 60 sec are in a minute and 180 = 3 minutes

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