The perimeter of the ABC triangle is 190cm. The AB side is 80cm, the BC side is 2 times smaller. Find the side of the speaker?

1. To solve the problem, first we find the side BC, which is 2 times smaller than AB:
80 cm / 2 = 40 cm.
2. Subtract from the perimeter of the triangle the lengths of the sides AB and BC, we get the length of the AC side:
190 cm – 80 cm – 40 cm = 190 cm – 120 cm = 70 cm.
Answer: The side of the speaker is 70 centimeters.

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' );