n. In the given figure, the radius of the outer circle is 7 units; the

1.	n. In the given figure, the radius of the outer circle is 7 units; then the radius of theinner circle isA) 72 units B) 7 2-1 unitsC) units14D) T2_ÄŞ units
Answer» 2(Radius of outer circle)=2*7=14 Now Diagonal ²=14²+14²=196+196=392 diagonal=√392=14√2 So, outer radius+diameter of inner circle+outer radius=14√2 7+diameter of inner circle+7=14√2 diameter of inner circle=14√2-14radius=7(√2-1). Option b is correct

n. In the given figure, the radius of the outer circle is 7 units; then the radius of theinner circle isA) 72 units B) 7 2-1 unitsC) units14D) T2_ÄŞ units

Answer»

2(Radius of outer circle)=2*7=14

Now Diagonal ²=14²+14²=196+196=392

diagonal=√392=14√2

So, outer radius+diameter of inner circle+outer radius=14√2

7+diameter of inner circle+7=14√2

diameter of inner circle=14√2-14radius=7(√2-1).

Option b is correct