Question

Triunghiul ABC , Unghiul A= 90° AB = 8cm , AC= 6 cm sin B = ?

Answer 1

in triunghiul ABC aplicam th Pitagora => BC^2 = AB^2+AC^2 => BC^2 = 36+64 => BC^2 = 100  => BC=10 cm 
sin B = cat op / ip => sin B = AC/BC = 6/10 = 3/5