Answer:
A = 201 cm²
Step-by-step explanation:
We know that the area of a circle can be calculated with the formula:
A = πr² = π(d/2)²
with d being the diameter.
Therefore:
A = 3.14(8cm)² = 201 cm²
0.2745 I believe... because 0.61 times 0.45 gives you that answer....
a = 84/14
The next step you would divide by 14 to get a=6 so I think the program wants you to input a = 84/14