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Aloiza [94]
2 years ago
8

Please do number 19 for me.

Mathematics
2 answers:
Natalka [10]2 years ago
8 0

Answer:

x = 9

angle \: abc = 8x + 6x + 6x \\   20x = 180  \\ x =  \frac{180}{20}  \\  x= 9

plzz \: \:  mark \: as \: brainliest

dedylja [7]2 years ago
4 0
Angles in triangle add to 180 degrees
20x=180
x=9
Angle ABC is the top one
8x9=72
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Answer:

Ques 1)  1440°

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Step-by-step explanation:

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The sum of the measures of the angles in degrees of a polygon with 'n' sides is given by: 180×(n - 2).

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3 years ago
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