Question

answer is opt.b nut how​

Answer 1

Sorry for saying extra things but NuT..!!?? Xd i am laughing so hard...

I think you meant BUT? & if nut then BYE let me laugh

Answer 2

Since the ratio is 5:4:3 it's a right angled triangle so we can take modulus of A= 5/12 (12= 5+3+4) |B|= 4/12 and |C|= 3/12 ,her A is the hypotenuse and B and C are the other 2 sides. Let angle btw A and C be x. sinx= |B|/|C| = 4/5 . Therefore x= sin inverse of 4/5