Question

Pf and h resp
MATERIALS REQUIRED:
1. A cuboidal box
2. A pair of scissor
3. Glue
PROCEDURE:
Step 1: Take an empty cuboidal box and label its length, breadth and height as 'T', 'b' and
tively. [Fig. 16.1 (a)].
Step 2: Colour each pair of opposite faces with different colours say (red, blue and green).
• Step 3: Cut out the 6 faces using a pair of scissors.
Step 4: Paste the 6 faces on a sheet of paper [Fig 16.1 (b)].
Step 5: Find the area of each face.
• Step 6: Add the areas of all faces. This will give the total surface area of the cuboidal box.
Fig. 16.1 (b)
Fig. 16,1 (a)
OBSERVATIONS:
Area of each red face = . sq. units
Area of each blue face _ sq. units
Area of each green face = - sq. units
(54)​

Answer 1

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