What is the value of sin A?

Answer:
0,61
Step-by-step explanation:
According trigonometry, we have the next relations
[tex]Sen \theta = \frac{side-opossite}{hypotenuse} [/tex]
In our case and according the picture, we have
[tex]Sen A = \frac{side-opossite}{hypotenuse} = \frac{7}{\sqrt{130}} [/tex]
[tex]Sen A = 0,61 [/tex]