1.找规律1,4,9,16,,,49,.3,5,9,17,,,129,.2.用一根长10.28的绳子围成一个半圆,这个半圆的半径是 ( ),面积是( ).
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1.找规律1,4,9,16,,,49,.3,5,9,17,,,129,.2.用一根长10.28的绳子围成一个半圆,这个半圆的半径是(),面积是().1.找规律1,4,9,16,,,49,.3,5,9,
1.找规律1,4,9,16,,,49,.3,5,9,17,,,129,.2.用一根长10.28的绳子围成一个半圆,这个半圆的半径是 ( ),面积是( ).
1.找规律
1,4,9,16,,,49,.
3,5,9,17,,,129,.
2.用一根长10.28的绳子围成一个半圆,这个半圆的半径是 ( ),
面积是( ).
1.找规律1,4,9,16,,,49,.3,5,9,17,,,129,.2.用一根长10.28的绳子围成一个半圆,这个半圆的半径是 ( ),面积是( ).
1,4,9,16,[25],[36],49,.
3,5,9,17,[33],65],129,.
2.用一根长10.28的绳子围成一个半圆,这个半圆的半径是 ( ),
面积是( ).
2r+3.14r=10.28
r=10.28/(2+3.14)=2米
s=3.14*2^2=12.56平方米
1,4,9,16,,,49,找规律
找规律:1,4,9,25,,49;
找规律:1,4,9,16,(),()
找规律1,4,9,16,
找规律填空;1,4,9,16,[,][,][,][,][,].
找规律1,4,9,16,64
-1、-4 、-9 、-16 、-25.找规律
找规律:1,-4,9,-16,25,-36,49,().
找规律填空.1,4,9,16,( ),( ),49,( ).
找规律:1,4,9,16,( ),36,49…
1,4,9,16,25,( ),49,找规律添数
找规律:4,( ),16,( ),( ),49,( )
4,9,16,25,( ),49,64 找规律
找规律填空 4,9,16,25,( )49,64
找规律 填空 1 ( ) 9 16 ( ) ( ) 49
找规律:1( )9 16 ( ) ( ) 49
二年级找规律填数1() 9 16 ( ) ( ) 49
找规律1,4_,16_36,49_81