Cuantos centímetros de listón se necesitan como mínimo para decorar el contorno total de un mantel como el que se ilustra en la figura

Denise needs to remind all 557 patients that the doctor's office won't be open on Fridays during the summer months. What's the most appropriate way to communicate this information to her patients? a) Text b) Email One-on-one meetings d) Phone calls

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