What will be the percentage of increase in the area square when each of the its sides is increased by 10%?
A20
B11
C121
D21
A20
B11
C121
D21
Related Questions:
A hollow iron pipe is 21 cm long and its exterior diameter is 8 cm. If the thickness of the pipe is 1 cm and iron weighs 8 g/cm3, then the weight of the pipe is