Oblicz w trojkacie ABC dlugosc strony b oraz wielkosc katu przy pomocy twierdzenia sinusow. Dane: a.... Question from @meega

November 2018 1 139 Report

Oblicz w trojkacie ABC dlugosc strony b oraz wielkosc katu $\beta$ przy pomocy twierdzenia sinusow.
Dane: a= 15 cm, c= 28 cm, $\gamma$ =77°
Szukane: b= ?, $\beta = ?$

animaldk $Rysunek\ pogladowy\ w\ zalaczniku.\\\\a=15cm;\ c=28cm;\ \gamma=77^o\\\\Z\ tw\ sinusow\ mamy:\\\\\frac{a}{sin\alpha}=\frac{c}{sin\gamma};\ sin77^o\approx0,9744\\\\\frac{15}{sin\alpha}=\frac{28}{0,9744}\\\\28sin\alpha=14,616\ /:28\\\\sin\alpha=0,522\\\\\alpha\approx31,5^o$

$\beta=180^o-(77^o+31,5^o)=71,5^o\\\\\frac{b}{sin\beta}=\frac{c}{sin\gamma};\ sin71,5^o\approx0,3173\\\\\frac{b}{0,3173}=\frac{28}{0,9744}\ /\cdot0,3173\\\\b\approx9,12\ (cm)$

©DRK

1 votes Thanks 1

Prosze o sprawdzenie i poprawienie ponizszego tekstu.The short story starts after Grace's mother has died. She knocks over the red nail polish that reminds her of her mother and the time when they painted each other's nails when her mother was having a chemotherapy and was in the hospital.After that the author describes Grace's chlidhood, when she and her mother go in heavy rain to fly a kite. A week later Grace's mother is in the hospital. Everything reminds her of the great time they had together. Also the sound of the medicine dripping out of the IV bag reminds Grace of the raindrops when she and her mother went to fly a kite. Grace visits her mother in the hospital and is always there for she.But her mother dies. And the "Vixen Red", the colour of the nail polish, is this what reminds her of her childhood, when her mother is still alive.The last part of the short story returns to the beginning, where Grace knocks over the nail polish. She starts to cry and her tears remind her of the rain when she went to fly kite with her mother.Grace goes out and starts to fly kite in the rain. She smiles and thinks of the words her mother said to her when they were flying kite for the last time.

Answer

meega November 2018 | 0 Replies

A jaki rodzajnik jest computer

Answer

meega November 2018 | 0 Replies

Oblicz poszukiwana dlugosc strony w trojkacie ABC. Do kazdego trojkata, narysuj rysunki pomocnicze.a) c= 65 cm; b) a = 11,4 cm; c) a= 94 cm;

Answer

meega November 2018 | 0 Replies

Rewrite the following sentences, using participles. 1. We jumped from the coach and we hurried inside. 2. We all sat in Hyde Park. We ate our lunch. 3. We had seen a lot of famous sights. We were quite tired.4. A skateboarder came past at top speed. He almost crashes into our English teacher. 5. From the top of the bus we could see people. They were hurrying along the pavement. 6. Before we went to bed, we made a few notes for our diary.

Answer

meega November 2018 | 0 Replies

Tlumaczenie:Ona byla bardzo dobra nauczycielka jezyka polskiego oraz prowadzila zajecia teatralne, na ktorych kazdy mogl sie cos dowiedziec o aktorstwie.

Answer

meega November 2018 | 0 Replies

Opis ulubionego nauczyciela z podstawowki. Jest obojetne, co napiszecie o tym nauczycielu, byleby bylo poprawnie. 60-80 slow.

Answer

meega November 2018 | 0 Replies

Prosze o rozwiazanie zadania 5 z zalacznika.

Answer

A jaki rodzajnik jest computer

Oblicz poszukiwana dlugosc strony w trojkacie ABC. Do kazdego trojkata, narysuj rysunki pomocnicze.a) c= 65 cm; b) a = 11,4 cm; c) a= 94 cm;

Jak zastompis słowo jest w zdaniach jest najmłotszy z rodziny . on jest osoba towarzyską

Jak nazywa sie sol, ktora powstaje podczas reakcji miedzi ze stezonym kwasem siarkowym (VI)?

Czy jest to poprawne?"Spain, we come!", chodzi mi o cos w rodzaju: Hiszpanio, nadchodzimy!

Tlumaczenie:Ona byla bardzo dobra nauczycielka jezyka polskiego oraz prowadzila zajecia teatralne, na ktorych kazdy mogl sie cos dowiedziec o aktorstwie.

Opis ulubionego nauczyciela z podstawowki. Jest obojetne, co napiszecie o tym nauczycielu, byleby bylo poprawnie. 60-80 slow.

Prosze o rozwiazanie zadania 5 z zalacznika.

Recommend Questions

Life Enjoy

Get in touch

Social