Question

find the area of ring shaped region enclosed between two concentric cirles of radii 30cm and 20 cm​

Answer 1

Answer:

area of circle is = πr^2 so u can solve it now dear

Answer 2

Answer:

8:8:7'/'+} }}$}$}€€€¢€©©[}]

Step-by-step explanation:

}[}[}[{}[|÷§ ׶׶׶׶׶׶×