Question

ABC is an obtuse triangle with m<A=21 and <C is acute.
a)What is m<B+m<c?
B)What is the range of whole numbers for m<C?
C)What is the range of whole numbers for m<B?

Answer 1

since A+B+C = 180, B+C = 180-A

the rest should be easy. If not, show us where you get stuck.