File:NLC416-14jh000249-62361 幾何學.pdf

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幾何學   (Wikidata search (Cirrus search) Wikidata query (SPARQL)  Create new Wikidata item based on this file)
Title
幾何學
image of artwork listed in title parameter on this page
Publisher
[出版者不詳]
Description

目錄
卷四 論面積
第一題 兩長方形若同高同底即相等
第二題 等底之兩長方形相比如其高相比
(一) 能求得其兩高之公准個者
(二) 若兩高相比無公准個者
系 等高之兩長方形相比如其底相比
第三題 異底異高兩長方形相比如各底乘其高相比
第四題 長方形之面積等於底乘高
第五題 平形方形之面積等於底乘高
第六題 三角形之面積等於底高相乘之半
系一 兩三角形之比例等於各底乘其高之比例
第七題 斜方形之面積等於兩對角線相乘之半
案 斜方形之面積等於底乘高
第八題 梯形之面積等於高乘平行兩底之半
系 梯形之面積等於高乘其不平行兩邊中點相連之線
第九題 求任多邊形面積之作法
第十題 求界以近似曲線之邊之任平面形面積之法
第十一題 兩直線連接之方等於各線方之和加兩線矩內形二倍
第十二題 兩直線較上之方等於此兩線方之和減兩線矩內形二倍
第十三題 兩直線之和與較相乘等於兩直線成方之較
第十四題 直角三角形弦方等於勾股方之和
系一 直角三角形靠直角兩邊之方及弦方與弦及由直角至底之垂線所分之兩段有比例
系二 直角三角形靠直角之一邊方及弦方與弦及由直角至底之垂線所截近之一段有比例
第十五題 凡三角形對銳角邊之方其面積等於余兩邊方之和減去其一邊之倍乘彼一邊之射影線
第十六題 凡三角形對鈍角邊之方其面積等於余兩邊方之和復加其一邊之倍乘彼一邊之射影線
第十七題 有法多邊形之面積等於用乘垂幅之半
第十八題 園之面積等於周乘半徑之半
系 圓之面積等於π乘r2
第十九題 圓心角形之面積等於其弧乘半徑之半
系一 圓心角形之面積等於〓
系二 圓分之面積等於其圓心角形減其所成三角形之面積
第二十題 相似三角形之面積相比如其相當邊之方相比
第二十一題 相似多邊形之面積相比如其相當邊之方相比
作法問題
第一題 求一圓之面積其半徑為4尺20寸者
第二題 求一半徑其圓之面積等於念四平方尺者
第三題 一圓分之面積等於念六平方尺及九寸六分若其底之弧為卅二度八分試問其弧為幾何長
第四題
第五題 試求
(一) 等邊三角形之面積基邊以a字代之
(二) 有法六邊形之面積其邊亦以a字代之
(三) 六圓分之面積其積為有法六邊形之邊及其外切圓圓周所限者
第六題 三角形abc已知其三邊,求其面積
第七題 求作一等積多邊形之三角形
案 若多邊形為凹形者其作法仍同
第八題 求作一正方形使等於已知二直線成方之和或其較
第九題 求作一方形使其與已知方形之比例如已知二直線之比例
第十題 求作一多邊形相似已定多邊形使其比例如已定二直線
案 求二多邊形之比例如以定二數之比例
第十一題 求作一長方形使其面積等於已知之正方形而其連腰之和或較等於已知之線

Language Chinese
Publication date [19--?]
Source
institution QS:P195,Q732353
(民國時期文獻 民國圖書)
館藏信息
InfoField
MG/O18/8
主題
InfoField
幾何
中圖分類
InfoField
O18
載體形態
InfoField
13,8頁

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