SOLUTION: Find the length of the missing side of the right triangle. Round to three decimal places, if necessary. a= 12, c = 20

Algebra ->  Expressions-with-variables -> SOLUTION: Find the length of the missing side of the right triangle. Round to three decimal places, if necessary. a= 12, c = 20      Log On


   



Question 204600: Find the length of the missing side of the right triangle. Round to three decimal places, if necessary.
a= 12, c = 20

Answer by Earlsdon(6294) About Me  (Show Source):
You can put this solution on YOUR website!
Find the missing side of a right triangle in which a = 12, c = 20, b = ?
Assuming that side c is the hypotenuse, then you can use the Pythagorean theorem to find side b:
c%5E2+=+a%5E2%2Bb%5E2 Substitute a = 12 and c = 20.
20%5E2+=+12%5E2%2Bb%5E2 Simplify.
400+=+144%2Bb%5E2 Subtract 144 from both sides of the equation.
256+=+b%5E2 Take the square root of both sides.
highlight%28b+=+16%29