Answer:
about 214.1
Step-by-step explanation:
Since pi r squared is the formula for a circle's area, you would do the opposite. First, you would divide 144001 by pi which is about 45,836.94. Then, you would find the square root of that which is about 214.1.
3 and 9
3 * 24 = 72
9 * 8 = 72
3 * 15 = 45
9 * 5 = 45
