在古代,紙扇除了能搞去暑意,文 人雅士還喜歡在上面作畫、題詩,
因此它也是裝飾品、藝術品。
以數學的觀點,可用黃金比值設計
一把最富美感的扇子。如右圖,
剩餘圖形B面積對扇形A面積的
比比值,如果是黃金比值1.618,則
扇形A就是最富美感的黃金紙扇。
看圖回答下面問題:

已知上圖圓的半徑10公分,完成下表:​

Find x to the nearest hundredth place

Aportion of a hiking trail slopes downward at about an 84° angle. to the nearest tenth of a flot, what is the value of x, the distance the hiker traveled along the path, if he has traveled a horizontal distance of 120 feet? a. 143.3 b. 12.5 c. 120.7 d. 130.2

What is always true about a positive integer raised to a negative odd power?