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larisa86 [58]
3 years ago
7

Please help with 17, 19, and 21 using trigonometry. Thanks!​

Mathematics
1 answer:
omeli [17]3 years ago
7 0
I honestly don’t know. But the square in the bottom of the triangles indicate that it is a right triangle equaling 90 degrees. You can try using that along with other knowledge of right triangles you have. Could you possibly use Pythagorean theorem also?
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