Area is measured in

In measuring the circumference of a circle , there is an error of 0.05 cm. If with this error the circumference of the circle is measured in c cm, then the percentage error in area is

The area of triangle is measured in terms of b,c A.If A=63^(@) and there is an error of 15^(1) In A; the percentage error in the area is

The area of triangle is measured in terms of b,c,A. If A=63^(@) and there is an error of 15' in A, the percentage error in the area is

The side of a square is measured with an error less than 0.01 cm. The area should be measured with an error less than 2 square cm. How large a square can be satisfactorily measured?

The side of a square is measured with an error less than 0.01 cm. The area should be measured with an error less than 2 cm^(2) . How large a square can be satisfactorily measured?

Area of nuclear cross-section is measured in 'Barn'. It is equal to

Fill in the blank spaces with appropriate answer: Pole strength per unit area is a measure of the __________.