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perfect square 【數學】整方,完全平方。

perfect stage

Our rooftop is 200 units ( now we ' ll scale that to feet ) - so it ' s 20 feet across and across , making a perfect square 我們的屋頂是200個單位- (現在我們將會依比例決定到腳)因此它是20尺橫過和橫過,制造一個完美的正方形。

But only in your head ' cause you can ' t draw a perfect square in the material world , 但只是在腦海里因為真實世界你無法畫出一個完美的正方形