Answer:
look up desmos graphing calculator! you're welcome x
Step-by-step explanation:
222222222222-22111111111111111
= - 2.2111 × 10^16
Answer:
25π
Step-by-step explanation:
1) for whole circuit: A=π*r², where r - radius of the given circle;
2) for a quater of the circuit: A=πr²/4;
3) finally, A=π*100/4=25π.
