Question

Pls tell me some answers for this

Answer 1

∠B = 56.25

Explanation:

We would use cosine function here.

cos Θ =
`(adjacent)/(hypotenuse)`

cos Θ =
`(5)/(9)`

cos⁻¹ (
`(5)/(9)`) = 56.25

Answer 2

∠B ≈ 56.25°

Explanation:

Since the triangle is right use the cosine ratio to solve for B

cosB =
`(adjacent)/(hypotenuse)` =
`(BC)/(AB)` =
`(5)/(9)`, thus

B =
`cos^(-1)`(
`(5)/(9)` ) ≈ 56.25°