Question

27. Prove that “ If two lines are intersect each other, then vertically opposite
angles are equal”.
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Answer 1

Answer:

two lines intersect each other, then the vertically opposite angles are equal. In the statement above, it is given that 'two lines intersect each other'. So, let AB and CD be two lines

Answer 2

Answer

When two lines intersect each other, then the opposite angles, formed due to intersection are called vertical angles or vertically opposite angles. A pair of vertically opposite angles are always equal to each other.

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