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Paraphin [41]
3 years ago
12

Find the length of side x to the nearest tenth. 309 X 60°

Mathematics
1 answer:
WITCHER [35]3 years ago
5 0
X = 1/cos(30)
X = 1.154700538
X = 1.2 (nearest tenth)
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See diagram
I wrote that the degrees are 70 each because it is isocolese and 140/2=70


a.
to solve for the diagonal, I'm going to use trig to find the height and the base then use pythagorean theorem to find the diagonal

so
see I've drawn an auxiliry line to make a right triangle on the leftmost side
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