Question

2. Abir bought a birthday cake for his mother in a box. He opened the box to CHECK
whether it was a cube or a cuboid. He found it to be a cuboidal shape. Can you
help Abir make a net of the box with the following dimensions: length 18 cm,
breadth 12 cm and height 10 cm?​

Answer 1

Answer:

hello

Explanation:

Area of the cake to be frosted = Total surface area of all the three layers − Area off bases of all the three layers as they are to be not frosted.

Total surface area of a cuboid =2(l×b+b×h+l×h)

=2(45×45+45×5+45×5)+2(30×30+30×5+30×5)+2(15×15+15×5+15×5)

=4950+2400+750=8100cm

2

Area of bases =45×45+30×30+15×15

=2025+900+225=3150cm

2

Area of the cake to be frosted =8100−3150=4950cm

2

hope you understand it

Answer 2

Answer:

it is a cuboid.........