B is your answer
Area of a circle is pi r^2 so pi8^2 is the formula for this one (radius is half of the diameter)
Answer:
Step-by-step explanation:
<h3>
The missing figure is attached.</h3>
For this exercise you can use the following Trigonometric Identity:
Let be "x" the hypotenuse of this right triangle.
You can identify from the figure that, in this case:
Then, knowing these values you can substitute them into :
Finally, you need to solve for "x" in order to find the lenght of the hypotenuse.
This is:
Check the picture below.
make sure your calculator is in Degree mode.
Answer:
D
Step-by-step explanation:
The equation of a circle in standard form is
(x - h)² + (y - k)² = r²
where (h, k) are the coordinates of the centre and r the radius
(x - 5)² + (y - 4)² = 25 ← is in standard form
with centre = (5, 4) → D