Question

the area of a circle is with a radius of 2 cm is π x 2 cm x 2 cm what is its diameter​

Answer 1

$\Huge\bf{Radius=2cm}$

$\Huge\bf{Diameter=2cm×2cm} \\ \Large \bf {D=4cm}$

Answer 2

Answer:

Area of the circle=πr2=πx2+6πx+9π

⇒r2=x2+6x+9

⇒r2=x2+2×3x+32=(x+3)2

⇒r=x+3

Hence radius of the circle is x+3 for x∈R

Step-by-step explanation:

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