You are there when you need a protractor? Here is the absence of a protractor, try using a protractor app. You can measure the angle of the object is reflected in the camera protractor. Try using a protractor protractor various apps, app.
Protractor (Angle measurement) is a free educational mobile app By Seong Eon Kim.It helps students practice the following standards .
Developer URL: https://eonsoft21h.web.app
Software Version: 2.2.3
Release Date: 2014-11-03T02:27:08Z