Respuesta :
Answer:
Angle F = 74°
Step-by-step explanation:
Step 1: Find the value of x
Rule: Sum of supplementary angles is equal to 180°.
Angle E + Angle F = 180°
9x - 38 + 2x + 42 = 180
11x + 4 = 180
11x = 176
x = 16
Step 2: Find angle F
Angle F = 2x + 42
x = 16
Angle F = 2(16) + 42
Angle F = 32 + 42
Angle F = 74°
Therefore, angle F is 74°.
The measure of angle F is 74degrees
The sum of supplementary angles is equal to 180 degrees
If angle E nd and angle F are supplementary, hence:
m<E + m<F = 180
Given the following:
angle E = (9x - 38)°
angleF = (2x + 42)º
Substitute into the expression:
9x - 38 + 2x + 42 = 180
9x +2x + 4 = 180
11x + 4 = 180
11x = 180 - 4
11x = 176
x = 176/11
x= 16
Get the angle F
angle F = 2x + 42
<F = 2(16) + 42
<F = 32 + 42
<F = 74degrees
Hence the measure of angle F is 74degrees
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