How to use a protractor

>> YOUR LINK HERE: ___ http://youtube.com/watch?v=t4xCOUNEInI

How to use a protractor to measure and draw angles.","styleRuns":[{"startIndex":0,"length":51,"styleRunExtensions":{"styleRunColorMapExtension":{"colorMap":[{"key":"USER_INTERFACE_THEME_DARK","value":4294967295},{"key":"USER_INTERFACE_THEME_LIGHT","value":4279440147}]}},"fontFamilyName":"Roboto"}]},"headerRuns":[{"startIndex":0,"length":51,"headerMapping":"ATTRIBUTED_STRING_HEADER_MAPPING_UNSPECIFIED"}]}},{"itemSectionRenderer":{"contents":[{"videoMetadataCarouselViewModel":{"carouselTitles":[{"carouselTitleViewModel":{"title":"Спробуйте YouTube Kids","previousButton":{"buttonViewModel":{"iconName":"CHEVRON_LEFT","accessibilityText":"Назад","style":"BUTTON_VIEW_MODEL_STYLE_MONO","trackingParams":"CMIBEPBbIhMIzcOx_JrviQMVBulCBR30hTbp","type":"BUTTON_VIEW_MODEL_TYPE_TONAL","buttonSize":"BUTTON_VIEW_MODEL_SIZE_XSMALL","state":"BUTTON_VIEW_MODEL_STATE_ACTIVE"}},"nextButton":{"buttonViewModel":{"iconName":"CHEVRON_RIGHT","accessibilityText":"Далі","style":"BUTTON_VIEW_MODEL_STYLE_MONO","trackingParams":"CMEBEPBbIhMIzcOx_JrviQMVBulCBR30hTbp","type":"BUTTON_VIEW_MODEL_TYPE_TONAL","buttonSize":"BUTTON_VIEW_MODEL_SIZE_XSMALL","state":"BUTTON_VIEW_MODEL_STATE_ACTIVE"}}}}],"carouselItems":[{"carouselItemViewModel":{"carouselItem":{"ctaCarouselItemViewModel":{"textCarousel":{"textCarouselItemViewModel":{"image":{"sources":[{"url":"https://www.gstatic.com/images/branding/product/1x/youtube_kids_48dp.png","width":48,"height":48},{"url":"https://www.gstatic.com/images/branding/product/2x/youtube_kids_96dp.png","width":192,"height":192}]},"text":{"content":"Додаток, створений для дітей"},"onTap":{"innertubeCommand":{"clickTrackingParams":"CL8BENezBSITCM3Dsfya74kDFQbpQgUd9IU26Q==","commandMetadata":{"webCommandMetadata":{"url":"https://ytkids.app.goo.gl/nou5","webPageType":"WEB_PAGE_TYPE_UNKNOWN","rootVe":83769}},"urlEndpoint":{"url":"https://ytkids.app.goo.gl/nou5","target":"TARGET_NEW_WINDOW"}}},"trackingParams":"CL8BENezBSITCM3Dsfya74kDFQbpQgUd9IU26Q==","button":{"buttonViewModel":{"title":"Відкрити сайт","onTap":{"innertubeCommand":{"clickTrackingParams":"CMABEPBbIhMIzcOx_JrviQMVBulCBR30hTbp","commandMetadata":{"webCommandMetadata":{"url":"https://ytkids.app.goo.gl/nou5","webPageType":"WEB_PAGE_TYPE_UNKNOWN","rootVe":83769}},"urlEndpoint":{"url":"https://ytkids.app.goo.gl/nou5","target":"TARGET_NEW_WINDOW"}}},"accessibilityText":"Відкрити сайт","style":"BUTTON_VIEW_MODEL_STYLE_MONO","trackingParams":"CMABEPBbIhMIzcOx_JrviQMVBulCBR30hTbp","isFullWidth":false,"type":"BUTTON_VIEW_MODEL_TYPE_TONAL","buttonSize":"BUTTON_VIEW_MODEL_SIZE_XSMALL","state":"BUTTON_VIEW_MODEL_STATE_UNKNOWN","accessibilityId":"id.ui.app_promo_teaser"}}}}}}}}]}}],"trackingParams":"CL4BELsvGAIiEwjNw7H8mu-JAxUG6UIFHfSFNuk="}},{"itemSectionRenderer":{"contents":[{"messageRenderer":{"text":{"runs":[{"text":"Коментарі вимкнено. 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