Math, asked by Vmaniglia07, 11 hours ago

A regular pentagon ABCDE is shown. А E B. D Work out the size of angle x.

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Answers

Answered by 2013989
9

Answer:

the answer is 36 degrees

Step-by-step explanation:

the interior angle of a regular pentagon is 108 and BCD is and isoceles one so b and d are same .

sum of angles of a triangle is 180 degrees

so 180-108=72

72/2=36 so that's the answer

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Answered by Sahilpat
3

Answer:

54°

Step-by-step explanation:

as you know that in the centre the total angle is 360 degrees and as it is a regular pentagon so the angle of each will be equal which is 360 by 5 which is equal to 72.

in a triangle sum of all angles is equal to 180 degree so the sum of other two angles is 180 - 72 which is equal to 108.

as you know that it is a regular pentagon on hands both the sides will be equal and hence both the angles will be equal to x is equal to 108 so x is equal to 54.

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