Question

Срочно!!!
Помогите!!!

Answer 1

3. $S = Pi * ON^2 - Pi * OM^2 = Pi(12^2-10^2)=44Pi$

4. $62=5/12*l=5/12*2Pi*r=5/6Pi*r\l=62*12/5=148,8\S=Pi*r^2=l^2/(4Pi)=1785,6$

Answer 2

В 4) точно не 12

Answer 3

1785,6