圆周长面积背诵.doc

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1、∏=3.142∏=6.283∏=9.424∏=12.565∏=15.76∏=18.847∏=21.988∏=25.129∏=28.2610∏=31.442∏=50.2452∏=78.562∏=113.0472∏=153.8682∏=200.9692∏=245.34102∏=314112=121122=144132=169142=196152=225162=196172=289182=324192=361202=400252=625352=1225452=2025∏=3.142∏=6.283∏=9.424∏=12.565∏=15.7

2、6∏=18.847∏=21.988∏=25.129∏=28.2610∏=31.442∏=50.2452∏=78.562∏=113.0472∏=153.8682∏=200.9692∏=245.34102∏=314112=121122=144132=169142=196152=225162=196172=289182=324192=361202=400252=625352=1225452=2025∏=3.142∏=6.283∏=9.424∏=12.565∏=15.76∏=18.847∏=21.988∏=25.129∏=28.2610∏

3、=31.442∏=50.2452∏=78.562∏=113.0472∏=153.8682∏=200.9692∏=245.34102∏=314112=121122=144132=169142=196152=225162=196172=289182=324192=361202=400252=625352=1225452=2025∏=3.142∏=6.283∏=9.424∏=12.565∏=15.76∏=18.847∏=21.988∏=25.129∏=28.2610∏=31.442∏=50.2452∏=78.562∏=113.0472∏

4、=153.8682∏=200.9692∏=245.34102∏=314112=121122=144132=169142=196152=225162=196172=289182=324192=361202=400252=625352=1225452=2025