The Sine Rule (1 of 2: What does it actually mean?)

array(10) { [0]=> object(stdClass)#4393 (5) { ["video_id"]=> int(9999999) ["related_video_id"]=> string(11) "DD-Tn_EEjI8" ["related_video_title"]=> string(55) "The Sine Rule (2 of 2: Proving & Using the Formula)" ["posted_time"]=> string(19) "9 лет назад" ["channelName"]=> string(9) "Eddie Woo" } [1]=> object(stdClass)#4366 (5) { ["video_id"]=> int(9999999) ["related_video_id"]=> string(11) "Z4tXgDDgOII" ["related_video_title"]=> string(52) "The Sine Rule (1 of 2: Introduction through example)" ["posted_time"]=> string(19) "7 лет назад" ["channelName"]=> string(9) "Eddie Woo" } [2]=> object(stdClass)#4391 (5) { ["video_id"]=> int(9999999) ["related_video_id"]=> string(11) "s3DvfQbiSic" ["related_video_title"]=> string(76) "The Cosine Rule (1 of 2: Introduction & relation to Pythagoras' Theorem)" ["posted_time"]=> string(19) "8 лет назад" ["channelName"]=> string(9) "Eddie Woo" } [3]=> object(stdClass)#4398 (5) { ["video_id"]=> int(9999999) ["related_video_id"]=> string(11) "EO2wBUqvs6Q" ["related_video_title"]=> string(55) "Area of a Triangle (Deriving the trigonometric formula)" ["posted_time"]=> string(19) "7 лет назад" ["channelName"]=> string(9) "Eddie Woo" } [4]=> object(stdClass)#4377 (5) { ["video_id"]=> int(9999999) ["related_video_id"]=> string(11) "l2cuRylQevY" ["related_video_title"]=> string(51) "A Good Math Olympiad Question for Advanced Students" ["posted_time"]=> string(21) "4 часа назад" ["channelName"]=> string(18) "Higher Mathematics" } [5]=> object(stdClass)#4395 (5) { ["video_id"]=> int(9999999) ["related_video_id"]=> string(11) "aWXIcy6pePs" ["related_video_title"]=> string(117) "ТЕОРЕМА СИНУСОВ И ТЕОРЕМА КОСИНУСОВ. Тригонометрия | Математика" ["posted_time"]=> string(19) "6 лет назад" ["channelName"]=> string(70) "TutorOnline - ОГЭ и ЕГЭ, уроки для школьников" } [6]=> object(stdClass)#4390 (5) { ["video_id"]=> int(9999999) ["related_video_id"]=> string(11) "G0vFAAya-Pg" ["related_video_title"]=> string(60) "Cosine Rule (1 of 2: Stating & re-arranging the formula)" ["posted_time"]=> string(19) "7 лет назад" ["channelName"]=> string(9) "Eddie Woo" } [7]=> object(stdClass)#4400 (5) { ["video_id"]=> int(9999999) ["related_video_id"]=> string(11) "r0_mi8ngNnM" ["related_video_title"]=> string(28) "What is 0 to the power of 0?" ["posted_time"]=> string(20) "11 лет назад" ["channelName"]=> string(9) "Eddie Woo" } [8]=> object(stdClass)#4376 (5) { ["video_id"]=> int(9999999) ["related_video_id"]=> string(11) "FTTkXGJ7E3Y" ["related_video_title"]=> string(66) "Intro to Trigonometric Functions (1 of 2: Angles of any magnitude)" ["posted_time"]=> string(19) "7 лет назад" ["channelName"]=> string(9) "Eddie Woo" } [9]=> object(stdClass)#4394 (5) { ["video_id"]=> int(9999999) ["related_video_id"]=> string(11) "DQGleX6Cwaw" ["related_video_title"]=> string(62) "Максимальное унижение Зеленского" ["posted_time"]=> string(24) "19 часов назад" ["channelName"]=> string(27) "Анатолий Шарий" } }