Question

The circumference of a tree trunk can be measured by using:
1. A metre scale
2. A piece of string

• A. 1 only
  
• B. 2 only
  
• C. Both 1 and 2
  
• D. Cannot be measured using 1 and 2

Answer 1

The correct option is C Both 1 and 2


A metre scale is usually made up of metal and cannot bend. So, we cannot measure the circumference of a tree trunk directly by using only a metre scale.
So, first, we will wrap the string on the circumference of the tree trunk then we can measure the length of that string with the help of a metre scale to know the circumference of the tree trunk.
Hence, by using both a metre scale and string we can measure the circumference of the tree trunk.