Select the most suitable statement.

Which of the following statements is false?

The radius of a circle is 14 cm and the area of a sector is 102.7 sq. cm. The central angle of the sector is

If the sides of a triangle are doubled, then its area

The area of a square field is 49 hectares. Find the cost of fencing it with wire at ₹21.50 per metre.

The length of a rectangle is 1 cm more than its width and its perimeter is 14 cm, then the area of the rectangle is