add class to child of this

Question

This code is not working. this+'>a' isn't a valid syntax. So, how can I add/remove a class in a child of this? In this case an a element.

 jQuery(function ($) {
        $("nav.menu>ul>li").hover(
            function () {
               $(this+'>a').addClass("hover_triangle");//error
            },

            function () {
               $(this+'>a').removeClass("hover_triangle");//error
            });
    }); 

I can't do nav.menu>ul>li>a because will select all a elements in menu.

Answer 1

$(this).children('a').addClass('hover_triangle');

and with the full code:

jQuery(function($) {
    $('nav.menu>ul>li').hover(function() {
       $(this).children('a').addClass('hover_triangle');
    },function() {
       $(this).children('a').removeClass('hover_triangle');
    });
});