Solve with Pythagorean Theorem a = side needed to find b = 9 c = 11 a² + 9² = 11² {substituted into the Pythagorean Theorem} a² + 81 = 121 {squared the 9 and the 11} a² = 40 {subtracted 81 from both sides} a = √40 {took the square root of both sides} a ≈ 6.32 {evaluated the square root of 40} © Algebra House
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