SOLUTION: Find all possible triangles with b=4, c=5 and angle B = 25 degrees. If no such triangle exists, explain why.
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Question 239289: Find all possible triangles with b=4, c=5 and angle B = 25 degrees. If no such triangle exists, explain why.
Answer by Photonjohn(42) (Show Source): You can put this solution on YOUR website!
Use the law of cosigns
b^2 = a^2 + c^2 - 2acCosign(25)
You will find a quadratic equation exists with a= a negative and a positive number. The positive number is too large to make the triangle real, i.e. a is greater than the sum of b + c. therefore the triangle doesn't exist.
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