3 years ago

Find the measure of y. 145° 130° 129° 134°

Mathematics

1 answer:

postnew [5]3 years ago

5 0

<h2>★<u>Answer</u></h2>

As We know a <u>heptagon</u> has <u>7 sides</u><u>.</u> So , we take the hexagon's sum of interior angles and add 180 to it getting us, 720+180=900 degrees.

⇢ 129° + 116 °+ 120° +130° + 135 °+ 125° + y = 900°

⇢755° +y = 900°

⇢y = 900 °- 755°

⇢y = 145°

<h2>Hence, The Answer is <u>145°</u></h2>

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