Question

The waist of a person can be measured using a ______.

• A. thread
• B. measuring tape
• C.
  metre scale
• D. plastic ruler

Answer 1

The correct option is B measuring tape

The devices that are commonly used for measuring length are metre scale and measuring tape. If the object is round, then we have to use a measuring tape to measure the length. The waist of a person is in round shape and can be measured only by using a measuring tape because a measuring tape can be bent around the waist.

A plastic ruler and a metre rod are made of plastic and metal respectively and cannot be bent at all.

A thread can bend around the waist of a person but we need a scale to measure the length of the thread. So, alone thread cannot be used to measure the waist of a person.

Thus, measuring tape is the correct answer.