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Hitman42 [59]
3 years ago
5

Can someone please help me on this question and show the work if you can?

Mathematics
1 answer:
Studentka2010 [4]3 years ago
6 0

Answer:

it is a 60 30 90 triangle so basically 2y is = x

21² + y² = x²

441 + y² = x²

y = x/2 (2y = x)

441 + x²/4 = x²

4x² = 1764 + x²

3x² = 1764

x = exact is 24.248711306 simplied square root would just be 14√3

2y = 14√3

y = 7√3

exact wouldd be 12.124355653

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