By studying this lesson, you will be able to, • obtain a value for the sum of the interior angles of a triangle and of a quadrilateral, • show that the sum of the exterior angles of a triangle and of a quadrilateral is 360°, and • perform calculations associated with angles of triangles and quadrilaterals. PDF එක Download කර ගැනීමට 👉🏻https://drive.google.com/file/d/1LvtL... ➤ DP Education - ගණිතය 👉🏼 / @dpeducationmathssinhala ➤ DP Education - Maths 👉🏼 / @dpeducationmathsenglish ➤ DP Education - கணிதம் 👉🏼 / @dpeducationmathstamil ➤ DP Education - English Academy 👉🏼 / @dpeducationenglishacademy ➤ DP Education - විද්යාව 👉🏼 / @dpeducationscience ➤ DP Kids 👉🏼 / @dpkidslk =========== Our websites: =========== ➤ DP Education 👉🏼 https://dpeducation.org ➤ DP Digital University 👉🏼 https://dpuni.org ➤ DP Kids 👉🏼 https://dpkids.lk ==================== Follow our social media: ==================== ➤ DP Education Facebook 👉🏼 / dpeducation.org ➤ DP Education Instagram 👉🏼 / dpeducation.lk ➤ DP Digital University Facebook 👉🏼 / dpuni.org ➤ DP Digital University Instagram 👉🏼 / dpdigitaluniversity further inquiries email us at [email protected] #DPEducation #Grade8MathsEnglish #Triangles_and_Quadrilaterals