The area of a circle is 2464 cm2. What is the diameter of this circle? [Use π = $\frac{22}{7}$]
Answer & explanation
Correct answer: option 1
We know that,
Area of a circle = πr2
Given,
The area of a circle = 2464 cm2
= 2464 = πr2
= \(\frac{22}{7}\) × r2= 2464
r2= 784
r =\(\sqrt {784}\) = 28
So, diameter = 2r = 2 × 28 = 56