Question

Given the following angles, what ray is the common side of ZCFD and ZDFE?ERay FDRay FERay FC

Answer 1

We will consider two angles as follows:

`<\text{ CFD > \& < DFE >}`

We are to determine the rays that have a common side to both < CFD > and < DFE >.

We will go ahead and make combination of pairs for each angle < F > common to both.

`CF\text{ , FD }`
`&`
`DF,\text{ FE}`

The common sides of the angle rays would contain similar letters! From the two combinations for each ray-angles we can see that the side:

`FD\text{ = DF}`

Hence, the ray common to both < CFD > and < DFE > is :

`\textcolor{#FF7968}{FD}`