Answer:
Negative
Step-by-step explanation:
(if it's going downwards = negative)
insta: ymy.lu
Answer:
A. 
Step-by-step explanation:
I am joyous to assist you anytime.
<h2>
Answer:</h2>
<h3>Radius:</h3>
radius is always half the length of its diameter. For example, if the diameter is 4 cm, the radius equals 4 cm ÷ 2 = 2 cm.
<h3>Diameter:</h3>
2 times the radius is the circle's diameter.
<h3>Circumference:</h3>
The formula is simply this: C = πd. In this equation, "C" represents the circumference of the circle, and "d" represents its diameter. That is to say, you can find the circumference of a circle just by multiplying the diameter by pi.the formula for circumference of a circle is 2 x pi x r(radius).
Because, 9 x 9 = 81. Hope I helped!
