Answer... ….............. 20, 21
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in Q.21 All angles are 130°
babyplum13:
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answer 21) 4 th angle is 130 because is linear complementary angle to 50° ---- line makes 180 ° . 1 St is 130. 2nd is 130. because parrelle line making angle with same transversal.(also called bpt -- I am not sure about it).
4 th is 130 angle opposite to 2nd angle..
4 th is 130 angle opposite to 2nd angle..
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