план к рассказу"Дурное общество"

на дне ручья лежит камешек.мальчик хочет попасть в него палкой.прицеливаясь мальчик держит палку в воздухе под углом 45 градусов. на каком расстоянии от камешка палка воткнётся в дно ручья, если его глубина 32 см.ПОМОГИТЕ ПОЖАЛУЙСТА,ЕСЛИ РЕШУ ПОСТАВЯТ 5 ЕСЛИ НЕТ, ТО В ПОЛУГОДИИ 3 БУДЕТ В ЭТОМ

2cos(2альфа+2П/3)/2 * cos(2альфа- 2П/3)/2=

Перекладіть будь ласка...

Andriy: Hi, Olia! Any news from our partner school in Great Britain?
Olia: Hello, Andriy! We got a letter from them yesterday. They have launched the UNESCO World Heritage Project in their school and invite us to participate in it, too.
Andriy: I've heard about UNESCO. The abbreviation stands for the United Nations Educational, Scientific and Cultural Organization. It promotes international co-operation among the countries in the fields of education, science, culture and communication. Am I right?
Olia: Yes, you are right.
Andriy: What sites have they chosen for their project?
Olia: They have decided to write about the sites in Ukraine and we have to choose the sites from the UK.
Andriy: Oh, I see. The project will help us know both countries better.
Olia: This is what the projects exist after all. They help us learn more about the world and people who live in it.