Question

8. A lid of rectangular box of sides 40 cm by 10 cm
is sealed all around with tape such that there is
an overlapping of 5 cm of the tape. What is the
length of the tape used ?​

Answer 1

Answer:

the length of the taped used 40 cm X 10 cm Answer is 400

Answer 2

Answer :

• 100cm is length of the tape
• 105cm is overlapping of tape

Given :

• Length is 40cm
• breadth is 10cm

To find:

• length of the tape used

Solution :

Given that , A lid of rectangular box of sides 40 cm by 10 cm is sealed all around with tape. so now we have to find the length of tape used.

• Length = 40cm
• breadth = 10cm

Length of tape required = Perimeter of rectangle

• Perimeter of rectangle = 2(l + b)

⟶ 2(length + breadth)

⟶ 2 (40 + 10)

⟶ 2(50)

⟶ 100 cm

Hence , 100cm is the length of tape required.

Now overlapping,

• 100 + 5
• 105 cm