Геометрия

якщо два кола з діаметрами 6 і 14 см мають зовнішній дотик то відстань між центрами цих кіл дорівнює

Точка О центр, радиус 8 см, СD перпендикулярно AB, проводимых в рамках хордасы диаметр. Если COA 0 =∠ 30, если известно, что,, найдите длину хорды элерона CD.

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Our History HONG KONG SHANG QIU INDUSTRY DEVELOPMENT CO.,LIMITED (Another name Shenzhen shangqiu Technology Co.,Ltd ) was a private enterprise which was founded in 2011, owning more than 7 years experience of export international business, But more than13years developing/manufacturing/merchandising pens. HONG KONG SHANG QIU Company is in Shenzhen Guangdong province, where It is located in South China bordering on Hong Kong. It is one of China's first special economic zones. It has an economy featuring high-tech industries. SHANGQIU is specialized in producing pen with brand of GOODPLUS, FLASH COLOR and LECOLOR, which includes Empty markers，Paint Marker、hair chalk. Chalk Marker(Window Maker)、liquid chalk marker. fluorescent markers, Led writing board markers, glass markers, Water-Based Paint Marker、 Furniture Touch-Up Marker、Grout Marker、Art & Draw Marker、White Board Marker、Gel Ink Pen、Highlighter Marker、Permanent Marker、 Fabric Marker、Metallic Marker、Tattoo Marker、Washable Marker、Glitter Marker also in its production range. Those pens have delicate appearance and abrasion resistance performance. They are granted with ASTMD-4236 and EN71-3 EN71-9certificateions and also are environmental friendly. Therefore, t such as Chalkola,Superchalk,CRAFTYCROC,VERSACHALK,Airbay ,BlueSmart,CHALKTASTIC,VELLOSTAR,FUNATIX and so on were made in our factory.. Combined with the performance of smooth writing and wide range of color option, shangqiu pens are widely used in company office, school, shops, factory, etc. Therefore, orders from homes and abroad such as U.S.A., UK, Germany, Austria, Russia, Africa and South east Asia countries, Japan、Poland、Turkey、Brazil countries and regions，favored by overseas businesssman. Based on the principle of “Quality first, Credibility orientated”, combining with tenet of “Professional from heart and Service made the brand”, shangqiu sincerely hope to explore the market and to build up a long term mutual beneficiary relationship with clients in both domestic and abroad. What we perused is what you needed. Warmly welcome for your contact and inquiries! Our Factory HONG KONG SHANG QIU Company is in Shenzhen Guangdong province, where It is located in South China bordering on Hong Kong. It is one of China's first special economic zones. It has an economy featuring high-tech industries. Our Product SHANGQIU is specialized in producing pen with brand of GOODPLUS, FLASH COLOR and LECOLOR, which includes Empty markers，Paint Marker、hair chalk. Chalk Marker(Window Maker)、liquid chalk marker. fluorescent markers, Led writing board markers, glass markers, Water-Based Paint Marker、 Furniture Touch-Up Marker、Grout Marker、Art & Draw Marker、White Board Marker、Gel Ink Pen、Highlighter Marker、Permanent Marker、 Fabric Marker、Metallic Marker、Tattoo Marker、Washable Marker、Glitter Marker also in its production range. Product Application For advertisement in any shops, Such as restaurants, dressing shops,bars,clubs,theater, museum, book shop,supermarket,special store,hairdressers,commercial centers, night market etc. Wirte on galss,boards and so on. Our Certificate Production Equipment Production Market We have many big brands popular all over the world Therefore, such as Chalkola,Superchalk,CRAFTYCROC,VERSACHALK,Airbay ,BlueSmart,CHALKTASTIC,VELLOSTAR,FUNATIX and so on were made in our factory. Our Service FAQ 1.Are you a manufacturer? Yes, most supplier in China all got the pens from our factory. We had 13 years experience in this filed. 2.What is the MOQ ? One set for our own available designs 3.Can I mix different modes? Sure! You can mix the color & modes you like. 4.Can I get the pre-production sample ? Yes, we will send you pp sample, after your confirmation, then we start production. 5.What’s the payment term? Payment methods: T/T, Western Union, PayPal. Payment Term:30% deposit for order confirmation, 70% balance payment before shipment. For free sample 1 set, please click send below now! Thank you.Customized 8 Pack Bright Neon Colored Paint Pens website:http://www.chalkmarkersupplier.com/ website2:http://www.emptymarkerpen.com/

ПОМОГИТИ ПЛИЗ ИЛИ У МЕНЯ ПО ГЕОМЕТРИИ 3 : (

только появляются немного другие задания , я теряюсь , скоро ГИА , и я не уверен что будут такие же задания , поэтому делаю шпоры , пожалуйста напишите разные формулы(желательно все) для комфортного решения задач из модуля "Геометрия" .

Есть автор Атасян но мне надо другую рабочую тетрадь тоже такая только не синяя а голубая)
Написано с другой стороны: Учебно методический комплект по геометрии для 7-9 классов
Пожалуйста скиньте сылку на него. (Помогите как найти решения на все номера рабочей тетради)

Геометрия.JPG2 и Геометрия.JPG3 это (ВТОРОЙ ТЭСТ )

Убидительная просьба! Когда вы будите решать тэсты вы напишити номер теста, про номеруйте пожалуйста задания в столбик и поставте правилную буковку к номеру задания .

И ещё если вы не можите решить тест под номером 1 ПРОШУ РЕШИТЕ ОБЯЗАТЕЛЬНО ТЭСТ ПОД НОМЕРОМ 2 поролельны прямые ОБЯЗАТЕЛЬНО ПОБЛАГОДАРЮ И ОТМЕЧУ КАК ЛУЧШИЙ ОТВЕТ ЕСЛИ ДЕЙСТВИТЕЛЬНО ПОМОЖИТЕ)