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  • 14-05-2020
  • Mathematics
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Work out the size of x

Work out the size of x class=

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Chelboy
Chelboy Chelboy
  • 15-05-2020

Answer:13°

Step-by-step explanation:

a + b + x=180 sum of angles in a =180°

85° is alternate to a

Therefore a=85°

98° and b are supplementary angles

98+b=180

b=180-98

b=82°

Recall that

a + b + x=180

85+82+x=180

167 + x=180

Collect like terms

x=180-167

x=13°

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