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# 3. Draw a pie chart showing the following information. The table shows the colours preferred by a group of people. Find the proportion of each sector. For example, Blue is $$\frac { 18 }{ 36 } =\frac { 1 }{ 2 }$$ ; Green is $$\frac { 9 }{ 36 } =\frac { 1 }{ 4 }$$ and so on. Use this to find the corresponding angles.

Central angles with their color are:
Blue colour: $$=\left( \frac { 18 }{ 36 } \times 360 \right) ^{ \circ }=180^{ \circ }$$

Green colour: $$=\left( \frac { 9 }{ 36 } \times 360 \right) ^{ \circ }=90^{ \circ }$$

Red colour: $$=\left( \frac { 6 }{ 36 } \times 360 \right) ^{ \circ }=60^{ \circ }$$

Yellow colour: $$=\left( \frac { 3 }{ 36 } \times 360 \right) ^{ \circ }=30^{ \circ }$$

Now, various components is shown by the adjoining pie chart.