CBSE Class 5 Mathematics Boxes And Sketches Worksheet Set 02

Competency Understanding Basic Concepts

Question I. Fill in the blanks
Answer:

In simple words: Count the flat surfaces (faces), straight lines where faces meet (edges), and pointy ends (corners) for each 3D shape.
Exam Tip: Remember Euler's formula for polyhedra: Faces + Corners - Edges = 2.

Question II. Given on the side is a 6 by 6 grid divided into two identical parts. Find two more ways of dividing the grid into two identical parts by drawing along the lines of the grid
Answer:
To divide a 6 by 6 grid into two identical (symmetrical or congruent) parts, we can follow different step paths along the grid lines:
1. Method 1 (Diagonal zigzag cut): Start from the top edge 2 units from the left, move 2 units down, 2 units right, 2 units down, 2 units right, and 2 units down to the bottom edge.
2. Method 2 (Staircase cut): Start from the left edge 3 units down, move 1 unit right, 3 units down, and 2 units right to the right edge.
In simple words: Draw a dividing line along the grid squares so that both resulting shapes have the exact same number of small squares (18 squares each).

Exam Tip: Always verify that both divided sections contain an equal number of unit squares (total 36 squares divided by 2 = 18 squares each).

Please refer to attached file for CBSE Class 5 Maths Worksheet-Boxes and Sketches (2)