Question

3) Calcule o valor de x nos quadriláteros:

Answer 1

a) 3x + 4x + 5x + 6x = 360
18x = 360
x = 360/18
x = 20 graus

b) x + (x + 50) + (2x - 30) + (x - 20) = 360
x + x + 50 + 2x - 30 + x - 20 = 360
5x = 360
x = 360/5
x = 72 graus