установить вид треугольника АВС и найти его периметр и площадь если А( 3; 0; 0) В (0; 3; 0) С (0; 0; 3)

помогите плииииз на завтра...

       Listen and repeat the wirds in the blue column

   My son starts school thes year. It is a big event in his life.

 - This event took place on the fifteenth of September. We have interesting events during a school year.

   - We study biology at school. Biology is a science abaut humans,nature and animals.

- We tare part in after school activeties and prepare for school events.

We'll have music and sport event and school too.

- We repeat the new words in chorus. Children like to say "Hooray!"in chorus.

- A festivite is a celebration of hoolidays or events in  a happy way.

- A ceremony is a formal event. On the Day of Knowledge we have an Opening  Ceremony... решите плиииз эту фигню

основная единица классификации животных дайте ей определение 2Постройте последовательную цепочку соподчинения основных систематических категорий в царстве животных на конкретно примере

помогите разобрать по членам предложения МАМА НЕ ПОЙДЕТ С НАМИ В ЛЕС