To find the value of b, we can rearrange the equation c^2 - a^2 = b^2 and substitute the given values:
c^2 - a^2 = b^2
29^2 - 20^2 = b^2
841 - 400 = b^2
441 = b^2
Taking the square root of both sides, we get:
b = √441
b = 21
a = 20
b = ?
c = 29
c2-a2=b2
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