Maharashtra BoardEnglish MediumSTD 8MathsCubes and Cube Roots2 Marks
Question
Making use of the cube root table, find the cube root 8.6
✓
Answer
The number 8.6 can be written as $\frac{86}{10}.$
Now
$\sqrt[3]{8.6}$
$=\sqrt[3]{\frac{86}{100}}$
$={\frac{\sqrt[3]{86}}{\sqrt[3]{10}}}$
By cube root table, we have:
$\sqrt[3]{86}=4.414$ and $\sqrt[3]{10}=2.154$
$\therefore\sqrt[3]{8.6}$
$=\frac{\sqrt[3]{86}}{\sqrt[3]{10}}$
$=\frac{4.414}{2.154}$
$=2.049$
Thus, the required cube root is 2.049.
Need a full question paper?
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.