Question

In the diagram below, CFED is a rectangle. If m/CFD = 12x and m/DFE = 6x, find the value of x.

Answer 1

5

Explanation:

if CFD is 12x and DFE is 6x that means CFE is 18x. 18x has to be equal to 90 degrees because CFED is a rectangle and each corner of a rectangle is 90 degrees.

so:

18x=90

x=5