SOLUTION: Can you help with the following problem? For a different triangle a=312 mm, A=90°, and b=216 mm, calculate the length of c. (mm) I tried using the pythagorean therom and plu

Algebra ->  Trigonometry-basics -> SOLUTION: Can you help with the following problem? For a different triangle a=312 mm, A=90°, and b=216 mm, calculate the length of c. (mm) I tried using the pythagorean therom and plu      Log On


   



Question 319001: Can you help with the following problem?
For a different triangle a=312 mm, A=90°, and b=216 mm, calculate the length of c. (mm)
I tried using the pythagorean therom and plugging the values into a^2 + b^2 = c^2 , which gives me 379.473 but that answer is incorrect.

Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
Your calculation is correct.
Check the setup of the problem.
If angle A is 90, and it's opposite to side a, then it's the hypotenuse (the longest side).
a%5E2=b%5E2%2Bc%5E2
312%5E2=216%5E2%2Bc%5E2
c%5E2=50688
c=225.1 mm
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