SRCC GBO 2022 Question Paper

Question 112

What is the sum of the vertex angles (in $$^\circ$$) of a nine-pointed star?

Solution

In any star-shaped figure, the sum of vertex angles is 180$$\times\ $$(n-4), where n is the number of vertices. 

Hence, in this case, it has to be 180$$\times\ $$(5), which is 900$$^\circ$$

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