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2 Answers

5 votes
The answer to your question is 250
User Wtower
by
5.4k points
2 votes

Answer:

D. 256 feet

Explanation:

We are solving for the diameter, but first let's get the radius, which is either AC or AD.

Let's think about this in terms of the triangles: what do we know? Both triangles are right triangles, which means we can apply the Pythagorean Theorem:


a^(2) + b^(2) = c^(2) , where a and b are legs and c is the hypotenuse.

Let's focus on the left triangle, ACE.

  • We can figure out that CE = 100 ft because CD = 200, and CE is half of CD.
  • We were given that AE = 80 ft.
  • Now all that's left is AC, which we can solve for.


a^(2) + b^(2) = c^(2)


100^(2) + 80^(2) = c^(2)

16400 =
c^(2)


√(16400) = \sqrt{c^(2) }

c = 128.06 = AC

AC is the radius, which is half the diameter, so the diameter is 128.06*2 = 256.12 = about 256 feet.

User Tobi Akinyemi
by
5.3k points
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