13.76 cv^2
Объяснение:
1) S1=(2R)^2=O1O2*O2O3=8*8=64 cm^2
2) S(O,R)=pi*R^2=3.14*4^2=50.24
3) 1/4*S(O,R)*4=S(O,R)=50.24
4) S1-S(O,R)=64-50.24=13.76 cm^2
13.76 cv^2
Объяснение:
1) S1=(2R)^2=O1O2*O2O3=8*8=64 cm^2
2) S(O,R)=pi*R^2=3.14*4^2=50.24
3) 1/4*S(O,R)*4=S(O,R)=50.24
4) S1-S(O,R)=64-50.24=13.76 cm^2