A right triangle is shown at right. Mark plans to use the Pythagorean Theorem to find the length of the missing side
Explanation:
a² + b² = c²
b = 6 in
c = hypotenuse = 10 in
a² + 6² = 10²
a²+ 36 = 100
subtract 36 from both sides:
a² + 36 - 36 = 100 - 36
a² = 64