A cord: and the longest cord in a circle is the diameter , so a diameter is a special case of cord.
20 out of 100 read 5 or more.
20/100 = 0.2
Now multiply the total students by 0..2:
275 x 0.2 = 55
55 people read 5 or more books.
X is equal to 1
hope it helps
Where is the V in the expression
Area = Pi x r (r + v)
v is h^2 + r^2 under radical (couldn't write it in the equation above so I wrote it here)
The answer is the 1st choice, 1944 pi
