Find the value of b. A 57 B 50 C 123 D 61.5

Mathematics

1 answer:

pychu [463]1 year ago

4 0

Answer: The answer is 50

Step-by-step explanation:

I did the test

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Work out the size of one of the exterior angles

hodyreva [135]

Given Information :-

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A polygon with 10 sides ( Decagon )

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To Find :-

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The value of one of the exterior angles

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Formula Used :-

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$\qquad \diamond \: \underline{ \boxed{ \pink{ \sf Exterior ~angle = \dfrac {360^\circ}{no. ~of~sides}}}} \: \star$

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Solution :-

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Putting the given values, we get,

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$\sf \dashrightarrow Exterior ~angle = \dfrac{360 ^\circ}{10} \: \: \\ \\ \\ \sf \dashrightarrow Exterior ~angle = \frac{36 \cancel{0}^\circ}{ \cancel{10}} \: \: \\ \\ \\ \sf \dashrightarrow Exterior ~angle = \underline{ \boxed{ \frak{ \red{36^\circ}}}} \: \star \\ \\$