Solve with Pythagorean Theorem

a = side needed to find

b = 9

c = 11

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*