Question

Draw a pie diagram to represent the area of the oceans of world.

Ocean	Pacific	Atlantic	Indian	Antarctic	Arctic
Area (Millions sq. km.	70.8	41.2	28.5	7.6	4.8

Answer 1

The percentage values are converted into degree values using the following formula.
$$\begin{gathered} \mathrm{Degree}\mathrm{share}=\frac{\mathrm{Percentage}\mathrm{share}}{100}\times 360 \\ =\mathrm{Percentage}\mathrm{share}\times 3.6 \end{gathered}$$

Ocean	Area	Percentage Area	Degree Share
Pacific	70.8	$\frac{70.8}{152.9}\times 100=46.30$	46.30 × 3.6 = 166.69
Atlantic	41.2	$\frac{41.2}{152.9}\times 100=26.95$	26.95 × 3.6 = 97.02
Indian	28.5	$\frac{28.5}{152.9}\times 100=18.64$	18.64 × 3.6 = 67.10
Antarctic	7.6	$\frac{7.6}{152.9}\times 100=4.97$	4.97 × 3.6 = 17.89
Arctic	4.8	$\frac{4.8}{152.9}\times 100=3.14$	3.14 × 3.6 = 11.304
Total	152.9	100	360°