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Calculate the size of angle y
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3 votes
Calculate the size of angle y

Calculate the size of angle y-example-1
User Monia
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2 Answers

3 votes
This is a hexagon and the sum of its internal angles = 720 degrees.

Therefore m < y = 720 - (110 + 75 + 170 + 90 + 130)

= 145 degrees (answer).
User Jayprakash Dubey
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7.9k points
4 votes

Angles in a triangle add to 180 degrees, a quadrilateral 360 degrees, a pentagon 540 degrees and a hexagon 720 degrees.

y + 110 + 75 + 170 + 90 + 130 = 720

y = 720 - 575 = 145 degrees
User Mcwyrm
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9.0k points
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