The radius of a circle is increased by 10%. The % increase of its are is
Answer (1)
23rd May, 2019
Hello Jyoti,
If the radius of the circle is increased by 10%, the area is of the circle which is calculated using the formula:
area = pi x r x r
Now consider the radius as 2 cm,
The area is 3.14 x 4 = 12.56 cm^2.
Now if radius is increased by 10%, i.e. it becomes 2.2 cm,
The area becomes 3.14 x 4.84 = 15.20 cm^2.
Thus the area increases by 21%.
Thanks for connecting to Careers360!
If the radius of the circle is increased by 10%, the area is of the circle which is calculated using the formula:
area = pi x r x r
Now consider the radius as 2 cm,
The area is 3.14 x 4 = 12.56 cm^2.
Now if radius is increased by 10%, i.e. it becomes 2.2 cm,
The area becomes 3.14 x 4.84 = 15.20 cm^2.
Thus the area increases by 21%.
Thanks for connecting to Careers360!
1 Comment
ReplyRelated Questions
Trending Articles/News
