面積公式。
(1/2)*(b1 + b2)*h。底邊平均值乘以高。
輸入或拍攝梯形的已知部分。AskSia 可處理標準、直角和等腰梯形的面積、周長、中線、高和角度關係。
梯形(美式用法)是只有一對平行邊的四邊形,稱為底邊。兩條非平行邊稱為腰。高是兩條底邊之間的垂直距離。面積 = (1/2)*(b1 + b2)*h。中線(連接兩腰中點)的長度為 (b1 + b2)/2。在等腰梯形中,兩腰相等,底角相等,對角線相等。在直角梯形中,有兩個角是 90 度。
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(1/2)*(b1 + b2)*h。底邊平均值乘以高。
連接兩腰中點;長度等於 (b1 + b2)/2,平行於底邊。
腰相等,底角相等,對角線相等。
兩個直角,一條腰垂直於兩條底邊。
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直接公式 (1/2)*(b1 + b2)*h。
重新排列為 h = 2A/(b1 + b2)。
直接 (b1 + b2)/2。
底角成對相等。如果給定一個,AskSia 會計算。
如果需要,當一條腰是斜邊時,使用畢氏定理。
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