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hichkok12 [17]
2 years ago
12

Find x with reasoning

Mathematics
1 answer:
MatroZZZ [7]2 years ago
3 0

Answer:

Angle Sum Property of triangle states that the sum of all the angles of a triangle is equal to 180°

Therefore ,

\bold{x + (x + 10) + (x - 40) = 180}  \\ \\\bold{ x + x + 10 + x - 40 = 180 } \\ \\ \bold{3x - 30 = 180} \\ \\ \bold{ 3x = 180 + 30} \\ \\  \bold{3x = 210 }\\  \\ \bold{x =  \cancel{\frac{210}{3}}}  \\  \\\bold\blue{ x = 70 \: degrees}

hope helpful~

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