120*4=480(м)-всего
480-192=288(м)-осталось
>-треугольник.
_-Угол
расмотрим >ABD И >ACD.
AB=AC
_1=_2
AD - общая
>ABD =>ACD по 1 признаку.
2)AC=AB=15СМ
BD=DC=5СМ
Это к сожалению не начертить тут
<span>Let’s
call him N.
I don’t know the place he
was born but I exactly know that he was born in August.
N is my old friend and I look up to him.</span>
Whatever
he does, he does it well. Whether studying, doing creative works, or any other things.
<span><span>N
is not good at sport, but this fault is offset
by his good memory </span> and his strength. He can’t do many push-ups, but he can throw a ball really far.</span>
To
tell the truth, sometimes I envy him. But as N is my role model I try not to
think about the envy. I want to be like him.
<span>Despite the fact that N always
criticizes himself </span>I cant stop admiring him.
Х прошел в первый день
<span>х+3. прошел во второй день
</span>(х+3)+3. прошел в третий день
<span>х+х+3+х+3+3=105
</span>3х=105-9=96
<span>х=32 км прошел в первый день</span>