Use the ruler provided to measure the radius of the circle to the nearest centimeter. which measurement is closest to the area of the circle in square centimeter 31.4cm
78.5
62.8
50.2

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.

Hi idk what that is wait am how do i get out of here i’m new