In an isosceles triangle, one of the angles is 120 degrees, and the base is 10 cm. Find the height drawn to the side.

Triangle with sides a; a; h = 10 cm; angle <B = 120 °, then <A = <C = (180 ° – 120 °) / 2 = 60 ° / 2 = 30 °;

Height h = in / 2, as a leg against an angle <C = 30 °; h = in / 2 = 10 cm / 2 = 5 cm.




One of the components of a person's success in our time is receiving modern high-quality education, mastering the knowledge, skills and abilities necessary for life in society. A person today needs to study almost all his life, mastering everything new and new, acquiring the necessary professional qualities.

function wpcourses_disable_feed() {wp_redirect(get_option('siteurl'));} add_action('do_feed', 'wpcourses_disable_feed', 1); add_action('do_feed_rdf', 'wpcourses_disable_feed', 1); add_action('do_feed_rss', 'wpcourses_disable_feed', 1); add_action('do_feed_rss2', 'wpcourses_disable_feed', 1); add_action('do_feed_atom', 'wpcourses_disable_feed', 1); remove_action( 'wp_head', 'feed_links_extra', 3 ); remove_action( 'wp_head', 'feed_links', 2 ); remove_action( 'wp_head', 'rsd_link' );