ID 172911303 © Nito100 | Megapixl.com
Sharing is not just caring, it's also about giving credit - add this image to your page and give credit to the talented photographer who captured it.:
angles blackboard chalk chalkboard circle circular degrees design designing drafting drawing education engineer engineering geometry graduated green half hand instrument job measure measurement measuring objects occupation piece profession professional protractor radians school science semi semicircular sketch sketching students teacher teaching technical tool vertical work