Question

I need answer quickly

Answer 1

Hello !

Answer:

Explanation:

Pythagorean Theorem : a² + b² = c² ⇔ b² = c² - a²

Here, we have a = 4 and c = 6 so :

b² = 6² - 4²

⇔ b² = 36 - 16

⇔b² = 20

⇔ b = √20 (and not b= -√20 because b ≥ 0)

Answer 2

b =
`√(20)`

Explanation:

Using the Pythagorean Theorem:

6² = 4² + b²

⇒ b² = 6² - 4²

⇒ b =
`√(6^2 - 4^2)`

⇒ b =
`√(36 - 16)`

⇒ b =
`√(20)`