1. https://www.bing.com/search?q=volume+of+a+cone+calculator&form=EDNTHT&mkt=sw-ke&httpsmsn=1&plvar=0&refig=f4b8d872991e4491da3777183677881f&sp=-1&pq=&sc=0-0&qs=n&sk=&cvid=f4b8d872991e4491da3777183677881f
2. https://www.engageny.org/sites/default/files/downloadable-resources/2014/Nov/geometry-m3-topic-b-lesson-11-teacher.pdf
3. https://www.google.com/search?client=firefox-b-d&ei=HG0TXebOLZCKlwTLyr-wBw&q=volume+of+a+cone+calculator&oq=volume+of+a+cone+notes&gs_l=psy-ab.1.1.0i71l8.0.0..17120...0.0..0.0.0.......0......gws-wiz.gX4k9c_hHjs