Answer:
the abstract science of number, quantity, and space, either as abstract concepts ( pure mathematics ), or as applied to other disciplines such as physics and engineering ( applied mathematics ).
i got u bro,
8388608
Step-by-step explanation:
neither of those are obtuse angles. the "must include a 90 angle" is the right triangle. the "has at least 2 equal side" is an equilateral triangle
It's B,
It looks so messy