The answer to the questions
The regular octagon in the ceiling of this cathedral has a radius of 10.5 feet and a perimeter of 64 feet.
2 answers:
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We can see that two sides of that triangle area equal
so, their corresponding angle will also be equal
now, we know that
sum of all angles in any triangle is always 180
so, we can get equation as
now, we can solve for x
so, option-C..............Answer
