Four children measure the length of a table which was about 2 m. Each of them used different ways to measure it.
(i) Sam measured it with a half metre long thread.

(ii) Gurmeet measured it with a 15 cm scale from her geometry box.

(iii) Reena measured it using her hand span.

(iv) Salim measured it using a 5 m long measuring tape.

Which one of them would get the most accurate length? Give reason for your answer.

Question

Four children measure the length of a table which was about 2 m. Each of them used different ways to measure it.
(i) Sam measured it with a half metre long thread.

(ii) Gurmeet measured it with a 15 cm scale from her geometry box.

(iii) Reena measured it using her hand span.

(iv) Salim measured it using a 5 m long measuring tape.

Which one of them would get the most accurate length? Give reason for your answer.

Philoid · Accepted Answer

(iv)

Saleem will get the most accurate measurement because he has used a standard instrument to measure the table. The length of the table is 2 m which is more close to the measuring tape readings. So, he doesn’t have to take too many readings like he had to when using 15 cm scale or half a metre thread.

The standard instrument will male it better choice than hand span.