An angle bisector divides the angle into equal halves.
- The value of x is 20
- FGH = HGI = 35
- FGI = 70
From the question, we understand that GH bisects FGI.
This means that:
[tex] < fgh \: = < hgi[/tex]
So, we have:
[tex]2x - 5 = 3x - 25[/tex]
Collect like terms
[tex]3x - 2x = 25 - 5[/tex]
Evaluate like terms
[tex]x = 20[/tex]
From the question
[tex] < fgh \: = 2x - 5[/tex]
Substitute 20 for x
[tex] < fgh \: = 2 \times 20 - 5[/tex]
[tex] < fgh \: = 35[/tex]
Recall that:
[tex] < fgh \: = < hgi[/tex]
This means that:
[tex] < hgi \: = 35[/tex]
The measure of FGI is the sum of both angles.
So, we have:
[tex] < fgi \: = 35 + 35[/tex]
[tex] < fgi = 70[/tex]
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