How do i find the radius in a circle

r=diameter/2

or r=circumference/2pi

Step-by-step explanation:

When you know the diameter: divide the diameter by 2

When you know the circumference: divide the circumference by 3.14(pi) and then divide by 2

When you know the area: divide the area by 3.14(pi) and then find the square root of that.

Hope this helps!

-4

step-by-step explanation:

do 6-10=

if u need it to be negative.