Answer:
Diameter
Step-by-step explanation:
Variable r stands for radius.
The radius is half of the length within the circle from the two farthest points.
Multiplying this radius will get you the diameter, which is the full length (instead of half) within the circle from the two farthest points.
If

and

are <span>supplementary angles, then

The ratio of

and

is

<span>

Substitute

into


From

we find the measure of


</span></span>
Answer:
a=2,3
Step-by-step explanation:
Answer:
The y-coordinate of point A is
.
Step-by-step explanation:
The equation of the circle is represented by the following expression:
(1)
Where:
- Independent variable.
- Dependent variable.
,
- Coordinates of the center of the circle.
- Radius of the circle.
If we know that
,
and
, then the equation of the circle is:
(1b)
Then, we clear
within (1b):

(2)
If we know that
, then the y-coordinate of point A is:


The y-coordinate of point A is
.