Akshay places three identical rings of diameter 21 cm 21 \text{ cm} 21 cm in such a manner that each one touches the other two rings. He observes that...
Question
Akshay places three identical rings of diameter in such a manner that each one touches the other two rings. He observes that there is a space enclosed by the circles. What is the area (in ) of this portion? (Take and )
Note: Round off the answer to the nearest 2 decimal places.