塾で出された高校入試のチャレンジ過去問です。 三角形の五心をどのように使って解けばいいかを教えてください（ヒントだけでも）m(_ _)m

☆高校入試問題チャレンジ☆ 選抜中1 2学期⑥円★★ △ABC の辺 BC, 辺AB の延長および辺 AC の延長に接する円の半径をとし, それらとの接点をそれぞれP,Q,R とする。 △ABCの内接円の半径が4, AQ=21, BC=14であるとき, 次の問いに答えなさい。 (1) ARの長さを求めなさい。 (2) △ABCの面積を求めなさい。 (3) rを求めなさい。 (1) 1 (3) P A R (江戸川学園取手)

なぜこのように求められるのでしょうか？？解説お願い致します。

水みつど 6. A glass U-tube open to the atmosphere at both ends is shown in the figure below. If the U-tube contains oil and water as shown, determine the specific gravity of the oil. .69% E. IAS al equipment 2016 Th S60;l=eriqeomis lecolarit 油みつど 99660.69 5 69 219wans srl evig bn 97 l obiani suzasną stuloads TH₂0 = 9.810KN = 981.2001g/m³ m² x=²4₂" x 0.3m /0.35 0.35 m Oil TIL V6 0.30 muasem 2i 19dmero muussy 6 eriqzos sool srit.694 Water 29 1.0.2 10³ 10g/m ³ x 0.3/0.35m 3 3.20 912251090157x103.ee at mang men abiani 922910 stuloads er stoluola oldmeda 8₁57 x 10² leg/m²³² Jiou frus 69. Seous 691 981. lcg/m³ howers a 0.8935 =0.874

解答教えてください。全部とかなくても大丈夫ですので。

の2つ交点をB, 形になる。 ・線分OA →座標を #. 7 す。 DE として NO. ア、正三角形 イ、直角三角形 ウ 二等辺三角形 I DATE 追加問題 ・GABCにおいて、cos2A+cos2B=2005Cが 成立するとき、△ABCはどのような三角形か? 選択肢から選びなさい。 直角二等辺三角形 a+b+y=πを満すとき sind+ sin+sing = 4 cosa cos cos I を証明せよ。 5 10 15 △ABCにおいて、次の等式が成立することを証明せよ [等式Ⅰ] c(sin²A + sin B) = sinc(asin A + bsin B.) [等式2] sinA (accosB) = sinB(b-ecosA) GRAVITY

Genius2のレッスン8 give it a try 大門1の(2)と、大門２の並び替えがわかりません、、わかる方お願い致します、

approaching. You may say it's not special because there seem to be some people who can fall asleep Choose the best words for the blank from “As a result, For example, In tree and the latter, on their trunk with the ground so that they can feel when enemies are Give If a Try addition, On the other hand". Many great scientific discoveries have happened by accident or from a mistake. Isaac Newton took a nap under an apple tree, which resulted in him being hit the head by a falling apple. It was this event that gave him the idea for the law of gravity. f Alexander Fleming hadn't left a sandwich by the window of his laboratory and forgotten about it, penicillin wouldnt have been discovered then. Having been in the right place at the right time or having madea mistake and having got an unexpected result, they made these important discoveries. penicillin-ペニシリン 2 Re-write the underlined part putting the best word in ( ). ) they ( )in the right place at the right time or ( 3 4 a mistake and ( ) got an unexpected result, they made those important discoveries. 6 (2) Put the words in the boxes in the right order to complete the sentences. standing on the train, holding on to a hand strap. The way people sleep seems somehow different from that of animals, are of really strange What is unique is the way some birds sleep upside Some which. It's well-known that animals in the down, foot holding on Wild such as giraffes or elephants sleep standing up. The former, neck on their resting with a one with to a branch. This would be impossible for us, but some birds any can't fall asleep other way. Ch C

この問題について解説をお願いしたいです！！ 特に,が付くと付かないとをどのようにして見分けるのか知りたいです🙇⤵︎ ︎ 参考までに答えなのですが、 1 when 2 ,when 3 ,where 4 where

)に入れるのに適切な用法を選びなさい。 13 限定用法と非限定用法が表す意味の違いに注意して、( 口1. Today is the day ( when /, when ) my old friend comes back. ロ 2.I am interested in the 17th century ( when /, when ) Miyamoto Musashi was alive ロ 3. Some people want to walk on the moon (where /, where ) gravity is one-sixth of that on Earth. ロ 4. This is the village (where / , where) he was born.

軌跡の問題です！ よろしくお願いします

X= aCosut+ ToSinat 4=-acosut +To sinut =miを使って軌を等く問数です。

軌跡の問題です！ よろしくお願いします

X= aCosut+ ToSinat 4=-acosut +To sinut =miを使って軌を等く問数です。

他1つでも分かるところあればお願いします😭

Rules in the School Library Grammar Focus Time and Place, Inversion We use phrases with prepositions and adverbs when we describe time and place. They are usually placed at the end of a clause or sentence. However, some emphatic expressions should be placed at the beginning of aclause or sentence and need to have an unusual structure, called inversion. Choose a phrase from the box below to complete each of the following sentences. Use a capital letter to begin the first word of each sentence. 1. The blueprints for the new buildingare on hold ( 2. A radical change in the formula fora new drug will take place ( 3. The scientific program has aired continuously ( ) did scientists decide that air, earth and fire were not really elements at all. 5. The Earth pulls on all objects with a force of gravity ( L). 6. My adviser will have been teaching for forty years ( 7. Most of the undergraduate students in the Faculty of Global Studies study abroad ( 8. All the classes during the first period are required to start ( ) were wriggling angleworms. f 10. Lithium batteries are prohibited to be sent ( a. by air in many countries b. by the end of the school year at the beginning of the year C。 d. until the end of October e. not until the eighteenth century f. since April 5, 2009, on the QBS Television Network g. during their second year h. under piles of leaves i. downward, that is, toward the center of the Earth on time, at 9:00 in the morning j.

教えてください！

Rules in the School Library Grammar Focus Time and Place, Inversion We use phrases with prepositions and adverbs when we describe time and place. They are usually placed at the end of a clause or sentence. However, some emphatic expressions should be placed at the beginning of aclause or sentence and need to have an unusual structure, called inversion. Choose a phrase from the box below to complete each of the following sentences. Use a capital letter to begin the first word of each sentence. 1. The blueprints for the new buildingare on hold ( 2. A radical change in the formula fora new drug will take place ( 3. The scientific program has aired continuously ( ) did scientists decide that air, earth and fire were not really elements at all. 5. The Earth pulls on all objects with a force of gravity ( 6. My adviser will have been teaching for forty years ( 7. Most of the undergraduate students in the Faculty of Global Studies study abroad ( 8. All the classes during the first period are required to start ( ) were wriggling angleworms. 10. Lithium batteries are prohibited to be sent ( by air in many countries b. bythe end of the school year a. at the beginning of the year C。 d. until the end of October e. not until the eighteenth century f. since April 5, 2009, on the QBS Television Network g. during their second year h. under piles of leaves i. downward, that is, toward the center of the Earth on time, at 9:00 in the morning j.

空欄に入る語句を教えて下さい！！

SUPPLEMENTARY READING Professor Smith: Today we are going to talk about searching for planets outside the solar system. In the universe. there are a vast number or stars and there must be a vast number of planets. Life is likely to exIst elsewhere. As a matter of fact, astronomers have found hundreds Or planets beyond our own solar system. Bart: I have a question. Those planets don't produce any light, so hoW do scientists find them? Professor Smith: It's not as difficult as you' may think. Researchers search for stars that have irregular movements caused by the gravityof the orbiting planet. Can anyone guess what those researchers do next? Victoria: Yes, I've read that researchers measure the distance between a planet and its sun, using high-tech telescopes. As a result, they can tell the temperature of'the planet. If the temperature is moderate, liquid water could exist. Professor Smith: Correct. Those conditions are suitable for life to begin, as it did on Earth. (162 words)