Respuesta :
Uses trigonometric ratios like the sin that is opposite over hypotenuse

find the other leg: a²+b²=c²
5²+b²=13², b=12
sinC=12/13,
use a calculator, C=67.37
sincA=5/13, A=22.62 (notice: A and C make a total of 90)
difference: 67.37-22.62=44.75
5²+b²=13², b=12
sinC=12/13,
use a calculator, C=67.37
sincA=5/13, A=22.62 (notice: A and C make a total of 90)
difference: 67.37-22.62=44.75