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How do you find x without having angles 30, 60, 90 or 45, 45, 90??​
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1 vote
How do you find x without having angles 30, 60, 90 or 45, 45, 90??​

How do you find x without having angles 30, 60, 90 or 45, 45, 90??​-example-1
User Bill Prin
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1 Answer

1 vote

use the cosine rule where

a^2 = b^2 + c^2 - 2bcCosA

User Roba
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