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21-04-2021
Mathematics

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HELP

This diagram shows part of a regular 10 sided polygon.
Work out the size of angle marked x.

HELP This diagram shows part of a regular 10 sided polygon Work out the size of angle marked x class=

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21-04-2021

Answer:

144 degrees

Step-by-step explanation:

work out the exterior angle of the shape 360/no of sides

then take it away from 180 (angle on a straight line) leaving you with the answer

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