What is thw value of x?x=____
2 answers:
Answer:
x = 30
Step-by-step explanation:
The 2 given angles are same- side exterior angles. That is they are on the same side of the transversal and outside the parallel lines.
same- side exterior angles are supplementary, thus
x + 12 + 3x + 48 = 180, that is
4x + 60 = 180 ( subtract 60 from both sides )
4x = 120 ( divide both sides by 4 )
x = 30
Answer:
(3x+48)+(x+12)
=4x+60
4x+60=180
4x=120
x=30
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Answer:
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Step-by-step explanation:
Answer:
sum of interior angle of heptagon is 900°.
140°+148°+136°+150°+142°+90°+x=900°
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