Question

How do I solve this? Thank you.

Answer 1

Answer:

Heyya little student!

Sin means $\frac{opposite }{hypotenuse}$

5 is the hypotenuse (its opposite to 90 degrees )

So, sin β would be:-

the side opposite to the angle β divided by the hypotenuse of the triangle.

The side opposite to β is 4

and as I said earlier, the hypotenuse is 5

So, sin β would be:-

$\frac{4}{5}$

I hope it helped you!

Keep learning

and never stop smiling

You Are Awesome!