Question

Find the value of x.....

Answer 1

Below

Explanation:

All of the angles labeled sum up to a right angle = 90 °

x+4 + x+4 + x+4 = 90

3x + 12 = 90

3x = 78

x = 26°

Answer 2

x = 26

Explanation:

from the diagram

∠ BFC + ∠ CFD + ∠ DFE = ∠ BFE , that is

x + 4 + x + 4 + x + 4 = 90

3x + 12 = 90 ( subtract 12 from both sides )

3x = 78 ( divide both sides by 3 )

x = 26