A circle has center at #(0,0)# and passes through #(-12,0)#, what is its circumference and area?
2 Answers
Circumference is
Explanation:
As the circle has center at
distance between
i.e.
As radius is
Circumference is
and area is
Explanation:
#color(blue)((0,0)and(-12,0)#
The distance between these points is the radius of the circle
#color(brown)("Distance"=sqrt((x_2-x_1)^2+(y_2-y_1)^2)#
We know the radius, let's find the circumference
#color(brown)("Circumference"=2pir#
Now find the area
#color(brown)("Area"=pir^2#
Hope this helps...:)