There's no diagram! link it and i'll help :)
Answer:
13
Step-by-step explanation:
x/y = 4
x=4y
x - y = 39
4y - y = 39
3y = 39
y= 13
Answer:
degree 24.7
Radian 0.43
Step-by-step explanation:
The measure of angle FDE must be 90 degree, if D is a point on the circle. If D is not a point on the circle, we are unable to determine the measure of angle FDE.
When you have angle with the vertex on a circle and the sides go through the ends of the diameter, the angle is always a right angle.