The center of circle d is (0, 0). the circumference of the circle passes through point e (-7, -4). find the length of the radius of circle d.

radius =

Step-by-step explanation:

The radius of the circle is the distance from the centre to a point on the circumference.

Calculate the radius using the distance formula

r = √(x₂ - x₁ )² + (y₂ - y₁ )²

with (x₁, y₁ ) = (0, 0) and (x₂, y₂ ) = (- 7, - 4)

r = = =

answer: the distance

step-by-step explanation:

to calculate the distance d of a line segment with endpoints (x1, y1) and (x2, y2) use the formula d (x2 x1)2 (y2 y1)2. to calculate the midpoint of a line segment with endpoints (x1, y1) and (x2, y2) use the formula

think the answer is 30 degrees. if not than it is 20 degrees. not 100% sure. let me know if it was right.

gill russ