# Find The Relation Between A and C ? If

Answered

If the area of a circle is A, radius of the circle is r and circumference of it is C, then

- r C = 2 A
- A C = r 2/4
- C / A = r/2
- A/r C

Best answer

**Answer: (1) r C = 2 A**

**Explanation:-**

**Given-**

The area of the circle = A

The radius of the circle = r

And the circumference of the circle = C

**Formula-**

**The area of the circle = Pai x r ^{2
}**

**The circumference of the circle = 2 x pai x r**

Then, r (2 x pai x r) = 2 x Pai x r^{2}

2 x Pai x r^{2} =2 x Pai x r^{2}

r C = 2 A ( C = 2 x pai x r & A = Pai x r^{2 }

Then, the relation between is r C = 2 A

Hence, the answer is (1) r C = 2 A.