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Find angle sum therom ​

Find angle sum therom ​-example-1
User LorenVS
by
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1 Answer

3 votes

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Sum of the interior angles of any triangle is 180° .

Thus ;


y + 48° + 90° = 180°


y + 138° = 180°

Subtract sides 138°


y + 138° - 138° = 180° - 138° \\


y = 42°

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User Ashish Satpute
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