Question

Calcule o valor de X em cada um dos triângulos????

Answer 1

senx = cat oposto/hipotenusa
cosx = cat adjacente/hipotenusa
tgx = cat oposto/cateto adjacente

a) cos30°= x/12 >>>> √3/2 = x/12 >>>> x = 6√3
b) tg45°= x/16 >>>>> 1 = x/16 >>> x = 16
c) cos60°= x/25 >>>> 1/2 = x/25 >>>> x = 12,5