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jalenshayewilliams
15.06.2020 •
Mathematics
Please help. I hope you all can read this. The number inside the shape is 40 degrees
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Ответ:
SIDE LENGTHS:
a = 22.57
b = 25
c = 35
ANGLE MEASURES
A = 40°
B = 45.39°
C = 94.61°
Step-by-step explanation:
1. Solve for side a using law of cosines: a = √25²+35²-2(25)(35)cos(40°) ≈ 22.57
2. Use side lengths to find all angle measures using law of sines:
--> cross multiply and take the inverse sine to get angle B = 45.39°
3. Now you have two angles, just subtract for angle C: 180-40-45.39= 94.61°
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