Answer:
7cm
Step-by-step explanation:
Area of rectangle: length × breadth
14cm × 11cm= 154cm²
Area of a circle: [tex]\pi\\[/tex]r²
[tex]\frac{22}{7}[/tex] × r × r= 154cm²
[tex]\frac{22}{7}[/tex] x r²= 154cm²
r²= 154 x [tex]\frac{7}{22}[/tex]
r²= 49
r= √49
r= 7
