The length of the common chord of two circles of radii 30 cm and 40 cm whose centers are 50 cm apart is (in cm) 

$$ {tan^2θ}$$ is equal to:-

If the product of two numbers is 4941 and their LCM is 81, then their HCF is:

A shopkeeper cheats to the extent of 10% while buying and selling fruits, by using tampered weights. His total gain , in percentage is:

A solid sphere of diameter 17.5 cm is cut into two equal halves. What will be the increase (in cm²) in the total surface area?

Solve it 0.002 × 0.5=?

A circular park whose diameter is 210 m has a 5 m wide path running around it(on the outside). What is the area ( in m²) of the path?

Select the INCORRECT formula from the following options.