Помогите пожалуйста! Лексическое значение к словам Мальчик, животное, растение

Use the words given in capitals at the end of each line to form a word that fits in each space in the same line. There is an example at the beginning (0).

Events like city marathons are (0) increasingly popular. You don't   INCREASE

have to be a (1)______________ person to take part in                       COMPETE

(2)_____________ , though you do need to be fairly                                   ATHLETE

(3)________________ and reasonably fit. You can build up              ENERGY

fitness by jogging. It's not the (4)__________________ that               DISTANT

matters, but how long your jog for. You can improve your                  
(5)__________________ gradually over a period of weeks.              PERFORM

In (6) ________________for a long race like a marathon it's               PREPARE

(7) _________________ to run more than a couple of kilometers        NECESSARY

most days. (8) ________________________marathon runners work on    SUCCESS

the (9) ____________________aspects of running long races.            PHYCHOLOGY
Mental (10) ____________________is just as important as being          STRONG

physically fit. 

какое свойство точек биссектрисы угла вы знаете?

sin(П/2+a)+cos( П-a) если cosa=-0,9