Question

यदि किसी वृत्त की परिमाप 20 सेमी है तो उसके लिए किनारे की लंबाई कितनी होगी​

Answer 1

Answer:

Blue Revolution refers to the time of intense growth in the worldwide aquaculture industry from the mid-1960s to present. The aquaculture industry has been growing at an average rate of 9% a year. Worldwide aquaculture production has now reached 50 million tons, up from two million in 1950.