Consider the incomplete paragraph proof.Given: Isosceles right triangle XYZ (45°-45°-90° triangle)Prove: In a 45°-45°-90° triangle, the hypotenuse is [square root] 2 times the length of each leg.Because triangle XYZ is a right triangle, the side lengths must satisfy the Pythagorean theorem, a2 + b2 = c2, which in this isosceles triangle becomes a2 + a2 = c2. By combining like terms, 2a2 = c2.Which final step will prove that the length of the hypotenuse, c, is [sqaure root] 2 times the length of each leg?

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