Question

$\huge\tt\colorbox{red}{QUESTION}$

If two straight lines intersect each other in such a way that one of the
angles formed measures 90°, show that each of the remaining angles
measures 90°


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Answer 1

AOC = 90°

We know that,the vertical angles which are created by the intersection of two straight lines,are equal. In this case, ∠BOC and ∠AOD are vertical angles. And, ∠AOC and ∠BOD are vertical angles.

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Answer 2

Answer:

it is proved above

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