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English Senior High

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○区切りごとに意味をとりながら、 音読しよう。sinondai lgme od aid to fish s ei eqneb adT goingiqe bood There dows aevom pitadors There are many dances / around the world. // 2 Each of them / has a and 90 FOR O unique background. // 3 Here, / let's look at three styles of dancing: / the mod as gaisableng da ai maitinummes [waohalvtin duo w hula, / Irish dance, / and breakdancing. // z eu u to orn ini beragaeil neftor pansy roewted siden, eveb seeds alto core 4 The first dance is the hula / in Hawaii. // It comes from the odTgoituloa taon sa eredi li sevisament booles eredmom m indigenous religion there. // In ancient Hawaii, / people showed their brewreftĄ Lidge to reaniw odt ao obiseb of gaisanbodsord een of aage respect for gods / by dancing. // They also danced to pass on important aipasbaleend.vebor 20 di esoros telugog omesed vleubars eodebe values / from generation to generation. // That was because they had no blow edi bauro y a STI Activity formal writing system / at the time. // In other words, / the hula wa adrid riedsfei prutlus up edt diw beta a C OR E CAR more than a leisure activity. // we ai gained engilegt has enabi nigdt beseerxe axed algeoqueado 10 In the hula, / dancers use their hands / to express emotions / an .noitsoinummos messages through the hula.. things in nature. // The dancers believe that they can communicat various messages / through the hula. // ... The next example is Irish dance. It is famous for the dancers' qu |

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Mathematics Senior High

白チャートの重心の問題です! (2)がわかりません!分かりやすく解説お願いしたいです!

1 & the △ABCの重心をG, 直線AG, BG と辺BC, AC の交点をそれぞれD, E とする。また, 点Eを通り BC に平行な直線と直線AD の交点をFとする。 AD=aとおくとき,線分 AG, FG の長さをα を用いて表せ。 (2) 面積比 △GBD : △ABC を求めよ。 CHARI GUIDEMOC 三角形の重心 2:1の比辺の中点の活用く (1)(後半) 平行線と線分の比の関係により AF:FD を求める。 E は辺 AC の中 点であることに注意。 (2) △ABDと△ADC, △ABG と AGBD に分けると, それぞれ高さは共通で等し いから、面積比は底辺の長さの比に等しいことを利用する。 解答 (1) G は △ABC の重心であるから AG: GD=2:1 AG =- -AD=- a 2 2 よって 2+1 3RD DE CASA また,Eは辺ACの中点であり, FE//DCであるから AF : FD=AE: EC=1:1 A よって ゆえに AF-12/AD-124 FG=AG-AF = すると = 1/30-120- よって したがって a ²-0-1-a=—a (2) 点Dは辺BCの中点であるから AABC=2AABD また. AD: GD=3:1 であるから AABD=3AGBD AABC=6AGBD $ROS AGBD:AABC=1:6 B ① B Bh' 2/F D G A ID E1108 GSGRO084 (1) 中 ign/58 h A = CRO 080平行線と線分の比の関係 8308 内高さがんで共通 HAABC: AABD 3章 C 三角形の辺の比,外心・内心・重 ←高さがん で共通 SAABD: AGBD =BC : BD IL =AD: GD

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English Senior High

ポイントを読み取ろうと内容を確認しようの それぞれの回答があっているかの確認をお願いします また、解けていないところの回答を教えてください。

○区切りごとに意味をとりながら、 音読しよう。sinondai lgme od aid to fish s ei eqneb adT goingiqe bood There dows aevom pitadors There are many dances / around the world. // 2 Each of them / has a and 90 FOR O unique background. // 3 Here, / let's look at three styles of dancing: / the ai mod as gaisableng da ai maitinummes [waohalvtin duo w hula, / Irish dance, / and breakdancing. // z eu u to orn ini beragaeil neftor pansy roewted siden, eveb seeds alto core 4 The first dance is the hula / in Hawaii. // It comes from the odTgoituloa taon sa eredi li sevisament booles eredmom m indigenous religion there. // In ancient Hawaii, / people showed their brewreftĄ Lidge to reaniw odt ao obiseb of gaisanbodsord een of aage respect for gods / by dancing. // They also danced to pass on important aipasbaleend.vebor 20 di esoros telugog omesed vleubars eodebe values / from generation to generation. // That was because they had no blow edi bauro y a STI Activity formal writing system / at the time. // In other words, / the hula wa adrid riedsfei prutlus up edt diw beta a C OR E CAR more than a leisure activity. // we ai gained engilegt has enabi nigdt beseerxe axed algeoqueado 10 In the hula, / dancers use their hands / to express emotions / an .noitsoinummos messages through the hula.. things in nature. // The dancers believe that they can communicat various messages / through the hula. // ... The next example is Irish dance. It is famous for the dancers' qu |

Resolved Answers: 1