Answer:
40
Step-by-step explanation:
The length of the third style can be found by applying pythagorean theorem.
Thus:
a² + b² = c², where,
a = 30
b = ??
c = 50 (hypotenuse/longest side)
Plug in the values into the formula.
30³ + b² = 50²
900 + b² = 2,500
Subtract 900 from each side
b² = 1,600
√b² = √1,600
b = 400
