The perimeter of a rectangle is calculated as 2 x (length + breadth). Substituting values: 2 x (12 + 8) = 2 x 20 = 40 cm. Class 6 NCERT Ganita Prakash Chapter 6 Perimeter and Area class 6 Mathematics Textbook Chapter ...
Home/a rectangle abcd whose length and breadth are 12 cm and 8 cm