Step-by-step explanation:
First, I flipped the 2nd triangle so I could see it clearly
∠YXZ = ∠EFD so,
7x-4 = 5x+10
7x-5x=10+4 combine like terms
2x=14
[tex]\frac{2x}{2} = \frac{14}{2}[/tex] divide both sides by 2 to eliminate 2 in 2x
x = 7
To get the angles, just substitute 7 into the x like this:
∠YXZ = 350
5x+10
5(7)+10
35+10 = 45°
∠EFD
7x - 4
7(7) - 4
49-4 = 45°
∠YZX
7x
7(7) = 49°
I don't know how to get the sides.
