Question

find the diameter of a circle whose circumference is 6.6 cm​

Answer 1

Step-by-step explanation:

Let the diameter of a circle be d m

Given circumference of the circle is 6.6 m

⟹πd=6.6

⟹22/7×d=6 6

⟹d=66×7/2.2=210 m

So the diameter is 210 m

Answer 2

$\huge\sf\fbox\purple{ ♡ Solution ♡ }$

★ Explanation ★

Let the diameter of a circle be d m

Given circumference of the circle is 66 m

⟹ πd = 66

⟹ 722 × d = 66

⟹ d = 22 66 × 7

= 21 m

So the diameter is 21 cm