The correct option is
A 18 sq units
Total area of a circle = 72 sq units
To determine the area of one part of a circle out of 4, we have to calculate the value of 72
÷ 4 and find out the remainder.
Let us solve this through partial quotient method.
First, we write the values in the long division bracket.
![](https://df0b18phdhzpx.cloudfront.net/ckeditor_assets/pictures/1203098/original_616726_2.png)
Now, we find an easier multiple of the divisor 4, which is closer to the dividend 72.
![](https://df0b18phdhzpx.cloudfront.net/ckeditor_assets/pictures/1203105/original_616726_3.png)
We subtract the multiple 40 from the dividend 72 and write the partial quotients in the right column.
![](https://df0b18phdhzpx.cloudfront.net/ckeditor_assets/pictures/1203106/original_616726_4.png)
Let's keep repeating the process until the dividend is reduced to zero.
![](https://df0b18phdhzpx.cloudfront.net/ckeditor_assets/pictures/1203107/original_616726_5.png)
Now, we add all the partial quotients to get the final quotient.
∴ Final quotient =10 + 8 = 18
Hence, the area of one part of the circle is 18 sq units.
![](https://df0b18phdhzpx.cloudfront.net/ckeditor_assets/pictures/1203117/original_616726_6.png)