Problema Solution
find the length side a in the right triangle if b=12 and c=15
Answer provided by our tutors
using the Pythagorean Theorem we have
a^2 + b^2 = c^2
a^2 = c^2 - b^2
a^2 = 15^2 - 12^2
by solving we find and consider the positive root (the length can not be a negative number)
a = 9
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