Area of parallelogram

👨🏻‍🏫 學術台數學

[匿名]

2013-07-24 4:51 am

回答 (3)

Adrian

2013-07-24 7:25 am

✔ 最佳答案

按下圖可下載放大來看:

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參考: 我是全職數學補習老師

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Lee

2013-07-24 6:50 am

Base of the parallelogram=r+r=2r
Height of the parallelogram= 2rsin60
Area of the parallelogram= 2r 2rsin60= 4r^2 sqrt3 /2= 2r^2 sqrt3

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[匿名]

2013-07-24 6:15 am

Base of the parallelogram: r+r = 2r
Height of the parallelogram: r+r = 2r
Area: 2r x 2r / 2 = 4r^2 / 2 =2r^2

Hope that i can help you :D

參考: me

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