Because it can not be approximately pointed on a graph.
Answer:
1385.4 sq yards
Step-by-step explanation:
The diameter is twice the radius. 42 divided by two is 21.
The area of a circle is found with the formula Pi *r^2.
21^2 * pi is approximately equal to 1385.4 sq yards
5<span>×</span>10^-7 = 0.0000005
When 10 is to a negative power, you move the decimal to the left because the number is less than positive 1. Here 10 is to the power of -7, so you move the decimal (which is after/behind 5) to the left 7 times.