Answer should be 63 because you multiply to find area
A.
because the total distance of every triangle 180. Add the two other angles so 42+ 57 =99. Then you have to subtract those two combined angles to find the missing one from the total distance, which is 180. 180-99=81. the answer is A. 81
The number 4,278 I think.
Hope this helps!
Answer:
send the graph and ill solve it
Step-by-step explanation: