Find the measure of y.

145°

130°

129°

134°

As We know a heptagon has 7 sides. 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°

the answer would be 1 1/72

step-by-step explanation:

you can rewrite the equation by separating the parts and then solving individually:

10-9=1

1/8 - 1/9=

find l c d and then combine:

1 1/72

3 3 6, because in every triangle the longer side is always shorter than the sum of the other two