Question : A wire is in the form of a square with a side of 11 cm. It is bent to form a circle. What is the radius of the circle?

Option 1: 11 cm

Option 2: 5 cm

Option 3: 9 cm

Option 4: 7 cm

Question : A piece of wire 132 cm long is bent successively in the shapes of an equilateral triangle, a square, and a circle. The area will be largest in the shape of:

Option 1: Circle

Option 2: Equilateral triangle

Option 3: Square

Option 4: Equal in all the shapes

Question : A solid copper sphere of radius 9 cm is hammered and moulded into a wire of radius 2 cm. What is the length of this wire?

Option 1: 224 cm

Option 2: 183 cm

Option 3: 198 cm

Option 4: 243 cm

Question : In a circle, a 14 cm long chord is 24 cm from the centre of the circle. Find the length of the radius of the circle.

Option 1: 30 cm

Option 2: 25 cm

Option 3: 50 cm

Option 4: 27 cm

Question : The circumference of a circle is equal to the perimeter of an equilateral triangle. If the radius of the circle is 7 cm, what is the length of the side of the equilateral triangle?

Option 1: $\frac{22}{3}$ cm

Option 2: $\frac{44}{3}$ cm

Option 3: $44$ cm

Option 4: $22$ cm