please help with this here is the link also https://www.ck12.org/assessment/tools/geometry-tool/plix.html?eId=SCI.CHE.124.5&questionId=53dfa5538e0e087de33b6cb1&artifactID=1829201&backUrl=%2F%2Finteractives.ck12.org%2Fplix%2Fchemistry%2Findex.html%3Freferrer%3Dteacher%26backUrl%3Dhttp%3A%2F%2Fwww.ck12.org%2Fteacher%2F&isBrowsePage=true&plix_redirect=1
