Answer:

~ 
Step-by-step explanation:
The formula for finding the area of a circle is;

Where (
) represents the area of the circle, (
) represents the value (
) and (
) represents the radius of the circle. As per its definition, the diameter is the largest cord or line segment that can be drawn through a circle, the diameter always passes through the center of a circle. The radius ( a line segment that can be drawn from the center of the circle to any side of the circle) is always half of the diameter.
This means that the radius for the given circle is (
), since (
÷
)
Substitute these values into the equation and solve for the area of the circle.

~ 
Answer:
X = 4
Step-by-step explanation:
you just gotta subtract 1 from both sides in order to find what x equals. and from there you subtract x from both sides, any letter has an invisible 1 in front, so then you divide 2 from both sides. and you get x = 4
The area is 7.07
A=1/4(pi)d^2
Answer:
9 + 5b
Step-by-step explanation:
Extending answers to be able to send.