Question

calcule o valor de x 45° 10

Answer 1

hipotenusa*cos(45)=10
hipotenusa= 10/ cos(45)
hipotenusa= 13,15

a^2=b^2 + c^2
13,15^2 =  x^2 +10^2
172,92 =  x^2 + 100
172,92 - 100 = x^2
72,92 = x^2
raiz quadrada de 72,92 = 8,54

x= 8,54