maths - Grade 9 - 7 th lesson - ප්‍රත්‍යක්ෂ

five basic concepts of mathematics by Euclid ( father of Geometry) watch and learn..... I am chanaka uththamawadu Home town - Ambalangoda Educational qualifications - Bsc (Hons) , University of Ruhuna (2005 - 2008). I am a graduate teacher.working at government school.My subject is mathematics for grade 6,7,8,9,10,11 students.I hope to increase the mathematical knowledge of all sri lankans students(grade 6 - 11) using my YouTube channel. subscribe my youtube channel -    / @chanakauththamawadu-maths   thanks for watching... contact me - whatsapp no - 0710821315