Question

d=18 CM



find the radius to diameter​

Answer 1

D=18cm

Radius=18÷2=9cm

Area o circle=πr²

Area of circle=3.14×9×9=254.34cm²Ans

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Answer 2

Answer:

9 cm

Step-by-step explanation:

If the diameter is 18 cm.

FORMULA

Diameter=Radius*2

So, Radius = Diameter/2

Radius= 18 cm/2

Radius= 9 cm