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平面圖形的周界(問題2)
Author:
HUNG TSZ CHUN洪梓竣
,
Ka Ling School of The Precious Blood
GeoGebra
以下哪些算式可以找出這個圖形的周界?
Select all that apply
A
20 +(15 × 2)
B
20 × 4
C
(20 + 15)× 2
D
20 × 2 + 15 × 2
Check my answer (3)
這個平面圖形的周界是多少cm?(答案不用加單位)
𝜋
Check my answer
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