Advertisements
Advertisements
Question
Four children measure the length of a table which was about 2 m. Each of them used different ways to measure it.
- Sam measured it with a half metre long thread.
- Gurmeet measured it with a 15 cm scale from her geometry box.
- Reena measured it using her hand span.
- 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.
Advertisements
Solution
Salim would get the most accurate length because he is using a 5 m long measuring tape which is longer than the table. So, he can measure the length of the table in one go accurately. While in the other cases the chance of making an error is higher due to multiple measurements. In case of Sam, only that lengths can be measured which are exact multiples of half a metre.
APPEARS IN
RELATED QUESTIONS
Describe in steps how would you measure the length of a pencil using a metre rule. Draw a diagram if necessary.
State if the following statement is true or false. Correct the statement if it is false.
A ruler with a damaged end can be used to measure a length accurately.
How many centimetres are there in 1m?
Name the device used to measure the following:
Size of your wrist.
Name the device used to measure the following:
Your weight.
Name the device used to measure the following:
Cloth for a curtain.
State two precautions to be observed while measuring length with the help of a metre scale.
Five kilometre is ______ m.
The area can be calculated by using the two lengths and width.
Four pieces of wooden sticks A, B, C and D are placed along the length of 30 cm long scale as shown in the following figure. Which one of them is 3.4 cm in length?
