1.75=12.3-x/2.8
x=(12.3-1.75)2.8
x=29.54
I would go with 45,45, 90 because first you can eliminate C and D.
C because it is not an equilateral triangle and D because you can figure it out.
Now you have A and B. A 30, 60 90 Degree Triangle would mean that none of the sides are equal (or the legs don't equal the hypotenuse when you put it in Pythagorean form [a²+b²=c²]). However if you translate the problem to answers that are easier to understand: {(7√3 = 12.124)² + 21² = 587.8944 = 14√3} Then you can see, two angles are equal to each other. So the answer is B.
Ur answer would be 56.6 degrees just subtract 33.5 from 90
Answer:
b
Step-by-step explanation:
Answer:
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