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Can someone please answer. There is one problem. There's a picture. Thank you!
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Can someone please answer. There is one problem. There's a picture. Thank you!

Can someone please answer. There is one problem. There's a picture. Thank you!-example-1
User Dwalldorf
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1 Answer

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bc =x
sinB = 13/x
cosB = 17/x
∵ sinB²+cosB²=1
∴ x≈21
∵ 17/21 = sinC
∴C≈60
User Fabdrol
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8.3k points
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