Answer:
58.99
The simplifying part may be wrong. It's not my strongest thing in math.
Explanation:
Well to find angle A you first have to see which trig function to use.
Soh Cah Toa
In this case, you need the opposite / hypotenuse, which is sin.
6 / 7
And then you have to use inverse sin of 6 / 7
It's 58.99728087 which can be simplified to 58.99
The simplifying part may be wrong. It's not my strongest suit.