Question 1: Draw the net of a cuboid with length 4 cm, width 3 cm, and height 2 cm.

Answer: Net with 6 rectangles: 2 of 4x3, 2 of 4x2, 2 of 3x2

Question 2: Calculate the total surface area of a cuboid with dimensions 5 cm (length), 3 cm (width), and 2 cm (height).

Answer: 62 cm^2

Question 3: Construct a rectangular net for a cuboid with dimensions 6 cm by 4 cm by 3 cm.

Answer: Net consists of rectangles of 6x4, 6x3, 4x3, with pairs accordingly.

Question 4: Identify the mistake in the following net: a net with two 4x3 rectangles, two 4x2 rectangles, but the rectangles are not arranged to form a cuboid.

Answer: Incorrect arrangement, missing or extra rectangles, or wrong face pairing.

Question 5: A box has a surface area of 94 cm^2. If the length is 5 cm, width 3 cm, and height 2 cm, verify whether these dimensions are correct by calculating the surface area.

Answer: Surface area = 62 cm^2, so given dimensions are incorrect.

Question 6: Plot the net of a cuboid with dimensions 3 cm by 3 cm by 6 cm on the grid.

Answer: Student draws the correct net with appropriate rectangles.

Question 7: A cereal box is a cuboid with length 10 cm, width 7 cm, and height 5 cm. Draw its net and then calculate the surface area.

Answer: Net with rectangles 10x7, 10x5, 7x5; surface area = 290 cm^2.

Question 8: Construct a net for a cuboid with dimensions 8 cm, 4 cm, and 3 cm. Label the faces.

Answer: Net with rectangles 8x4, 8x3, 4x3, pairs accordingly.

Question 9: A cube has a surface area of 96 cm^2. Find the length of each side.

Answer: Side length = 4 cm

Question 10: A factory produces rectangular cartons with dimensions 9 cm by 5 cm by 4 cm. Determine the total surface area of one carton.

Answer: Total surface area = 148 cm^2

Question 11: Identify and explain the common mistake students make when drawing nets for cuboids.

Answer: Incorrect arrangement, overlapping faces, or missing faces.