Maths - Grade 10 - 1 st lesson -පරිමිතිය - perimeter

Maths lessons in sinhala medium 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