a circle with a circumference of 25 has an arc with a 60° central angle. what is the area of a sector?

Just tell koda to adjust the number of shapes himself.

There was 504 pages in that chunk

First step is to get rid of the square root. remember that a square root is the same as raising to the (1/2) power. see below: multiply exponents per exponent rules to get: remember you subtract exponents from the denominator and add exponents in the numerator so: simplify further: so a is the correct choice. if you don't understand this google exponent rules and it will you understand. look at the image results.