A circle is drawn with diameter DE. Point F lies on the circle with FD and FE drawn as well. Given angle FDE=30 what is angle FED.
90
40
60
30
angle DFE is inscribed in a semicircle , so it is 90º
FDE + FED = 90º
1. right angle
2. 45
3. 60
4. 63
5. a=85° b=47.5° c=90°
To find angle FED, we need to use the fact that angles in a triangle add up to 180 degrees.
In triangle FED, we know that angle FDE is 30 degrees.
Since FED and FDE are angles in a triangle, we can substitute the given angle measure and solve for the unknown angle.
180 = FED + FDE + DFE
180 = FED + 30 + DFE
To find angle FED, we can subtract 30 from both sides of the equation:
180 - 30 = FED + DFE
150 = FED + DFE
Since we don't know the measure of angle DFE, we cannot determine the exact value of angle FED.