First slide

Accuracy; precision of instruments and errors in measurements

Question

Each side of a cube is measured to be 7.203 m. The volume of the cube to appropriate significant figures is

Moderate

A

$31.3 m^{3}$
B

$313 m^{3}$
C

$373.7 m^{3}$
D

$37.3 m^{3}$

Solution

The number of significant figures in the measured length is 4. The volume should therefore be rounded off to 4 significant figures.
As, $V = a^{3}$
Given, a = 7.203 m
$∴ V = {(7.203)}^{3} = 373.714754 m^{3} = 373.7 m^{3}$

Get Instant Solutions

When in doubt download our app. Now available Google Play Store- Doubts App

Recieve an sms with download link

Doubts App

OR

SCAN ME

Doubts App

Doubts App