joelin123pbps09
joelin123pbps09
11-07-2018
Mathematics
contestada
calculate the size of angle y
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DeanR
DeanR
11-07-2018
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
Answer Link
Аноним
Аноним
11-07-2018
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).
Answer Link
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