NCERT Exemplar Solutions
Class 6 - Mathematics - Unit 6: Mensuration - Problems and Solutions

Question 25

1. Understand the unit: One small square on the grid is taken as one unit of area. So, area is counted by how many small squares are covered.
2. What to count: Count only the complete small squares inside the figure. Each complete small square = (1) square unit.
3. Scan the figure slowly: Move row by row (or column by column) and mark each complete square so you don’t count anything twice.
4. Tally as you go: Keep a running total. For example:
   • After first few squares: total = (1 + 1 + 1 = 3)
   • Keep adding: (+1) for each full square you see.
5. No partial squares here: In this figure, only full squares are covered (no halves or parts to combine).
6. Final count: You will find 18 complete small squares.
7. Therefore, area: ( ext{Area} = 18 imes 1 = 18) square units.

Area of the region = 18 square units.