My favorite hobby is sing. It is wonderful. I like sing. My voice is very beautiful. I sing good songs. I sing pop, rock and jazz. I like sing very much.
№ 337
1) a, -,-,-
2) a,-
3) -,-,a,-
4) a,-,a,a,-,the
5)-,-
Средняя линия треугольника делит стороны AB и CB на равные отрезки AM и MB, CN и NB соответственно. Следовательно, AB = AM + MB = √3 + √3 = 2√3, CB = CN + NB = 2√2.
По теореме Пифагора найдем сторону АС: AC² + CB² = AB²
AC² = (2√3)² - (2√2)² = 12 - 8 = 4
AC = 2