Question

Let A and B be the two non-right angles in a right triangle.

Answer 1

Explanation:

adjacent=5 ,hypotenuse13 opposite=?

hypotenuse^2=opposite^2+adjacent^2

13^2=opposite^2+5^2

169-25=opposite^2

`\sqrt144`=opposite

12=opposite

SinA=opposite/hypotenuse

12/13

therefore sinA =`12/13