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題 1 *
Author:
lam
GeoGebra
以下哪個是正確的列式?(取π = 3.14)
Select all that apply
A
B
C
Check my answer (3)
提示:
正方形面積 = 邊長
× 邊長 = 10
× 10
圓面積 = 半徑 × 半徑 × π
= (10÷2
)
×
(10÷2
)
× 3.14
著色部份面積 =
正方形面積 -
圓面積
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