Answer:
Exact circumference is
Approximate circumference is
Step-by-step explanation:
We are given;
We are required to determine the exact and approximate circumference of the circle.
Taking π as 3.14
The exact circumference of the circle is
Thus, the approximate circumference of the circle is
Answer:
see the explanation
Step-by-step explanation:
we have
This is the equation of a line in point slope form
where
the point is (-2,4)
the slope is m=1/3
Remember that the formula of slope is "rise over run", where the "rise" (means change in y, up or down) and the "run" (means change in x, left or right)
so
To graph the line
1. Plot the point (–2,4).
2. From that point, count left 3 units and down 1 unit and plot a second point.
3. Draw a line through the two points
Given:
AD is diameter of the circle, AB is the tangent, and measure of arc ADC is 228 degrees.
To find:
The and
.
Solution:
AD is diameter of the circle. So, the measure of arc AD is 180 degrees.
The measure inscribed angle is half of the corresponding subtended arc.
AB is the tangent. So, because radius is perpendicular on the tangent and the point of tangency.
Therefore, and
.