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Answer :
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.