The diameter of a sphere is `4.24m`. Calculate its surface area with due regard to significant figures.

The diameter of a sphere is 4.24 m . Calculate its surface area with due regard to significant figures.

Solve with due regard to significant figure. 46.7 -10.04 =

The mass of 1.2 cm^3 of a certain substance is 5.74g. Calculate its density with due regard to significant figures.