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Question
Indicate which pairs of angles are:
(i) Vertically opposite angles
(ii) Linear pairs
(2 marks)
(i) Vertically opposite angles
(ii) Linear pairs
(2 marks)
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Solution
(i) ∠1 and ∠4, ∠5 and ∠2 +∠3 are vertically opposite angles as these are formed due to the intersection of two straight lines.
(1 mark)
(ii) ∠1 and ∠5, ∠5 and ∠4 are linear pairs as these have a common vertex and also have non-common arms opposite to each other.
(1 mark)
(i) ∠1 and ∠4, ∠5 and ∠2 +∠3 are vertically opposite angles as these are formed due to the intersection of two straight lines.
(1 mark)
(ii) ∠1 and ∠5, ∠5 and ∠4 are linear pairs as these have a common vertex and also have non-common arms opposite to each other.
(1 mark)
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