top button
Flag Notify
    Connect to us
      Facebook Login
      Site Registration

Facebook Login
Site Registration

The area of a circle is 1386 cm2. What is its circumference?

0 votes
21 views
The area of a circle is 1386 cm2. What is its circumference?
posted 4 days ago by Balwinder

Share this puzzle
Facebook Share Button Twitter Share Button LinkedIn Share Button

1 Answer

0 votes

πr^2 = 1386 cm^2
r^2 = 1386/π = 441.1775 cm^2
r = 21 cm
Circumference = 2πr = 132 cm.

answer 3 days ago by Tejas Naik



Similar Puzzles
+1 vote

You have a patch of dead shrubs you want replaced with sod. But there's a hornet's nest in the middle, and therefore to avoid
getting stung you can't measure the radius or diameter to plug into the formula: area = pi r squared.

And in order to get a price quote from the landscaper you need the square footage.

You can however easily measure the circumference.

Question: what is the area of this circle of dead shrubs if the circumference is 100 ft?

+3 votes

A circle has a radius of 12 units and its center is at one vertex of a square. The square has a side of 12 units. Find the area of the shaded region?

enter image description here

Contact Us
+91 9880187415
sales@queryhome.net
support@queryhome.net
#280, 3rd floor, 5th Main
6th Sector, HSR Layout
Bangalore-560102
Karnataka INDIA.
QUERY HOME
...