Radius = 9m
Diameter = 18 m
Area = 254.34 squared m
Circumference = 56.52 m
I’m guessing is asking for the circumference because it says around
Answer:

Step-by-step explanation:
To find the inverse of a function, swap the places of the x and y variables and solve for y again.

Answer:
s = 21 cm
Step-by-step explanation:
Square is s x s = area
So you just take the square root button of the calculator to find that 21 x 21 is 441.
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