Answer:
Step-by-step explanation:
4.
2ab cos C=a²+b²-c²
2×31×14 cos C=31²+14²-40²
868 cos C=961+196-1600=-443
cos C=-443/868
C=cos^{-1}(-443/868)≈120.688≈120.69°
5.
by sine formula
m∠B=180-(62+55)=180-117=63°

So yeah/so basically... (just please choose one)
The answer is... (drumroll please)
...50%
DG and EF are the same length, they are sides of a parallelogram
Hi , the answer for this riddle is "she was practicing for a moonshot".
Answer:
17/16= 1.06 (rounded)
16/17= 0.94 (rounded)
9/45= 0.2
5/13= 0.38 (rounded)
-28/35= -0.8
15/20= 0.75
Step-by-step explanation: Hope this helps