50 POINTS !!
PLEASE HELP !! ILL GIVE BRAINLIEST TO THE RIGHT ANSWERS.

Answer:
5.7
Step-by-step explanation:
b² = 6² - 2²
b² = 36 - 4
b² = 32
take the square root of both sides
b = √32
b = 5.65685424949238
Rounded
b = 5.7