1.求周长 r=6dmr=1.5cmr=3m2.求半径rd=12cmd=37m3.求直径dr=2.5mr=25m

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1.求周长r=6dmr=1.5cmr=3m2.求半径rd=12cmd=37m3.求直径dr=2.5mr=25m1.求周长r=6dmr=1.5cmr=3m2.求半径rd=12cmd=37m3.求直径dr

1.求周长 r=6dmr=1.5cmr=3m2.求半径rd=12cmd=37m3.求直径dr=2.5mr=25m
1.求周长
r=6dm
r=1.5cm
r=3m
2.求半径r
d=12cm
d=37m
3.求直径d
r=2.5m
r=25m

1.求周长 r=6dmr=1.5cmr=3m2.求半径rd=12cmd=37m3.求直径dr=2.5mr=25m
1.周长:C=37.68dm C=9.42cm C=18.84m
2.半径:r=6cm r=18.5m
3.直径:d=5m d=50m