(i) The pairs of corresponding angles:
\(∠1, ∠5; ∠2, ∠6; ∠4, ∠8\) and \(∠3, ∠7\)
(ii) The pairs of alternate interior angles are:
\(∠3, ∠5 \) and \(∠2, ∠8\)
(iii) The pair of interior angles on the same side of the transversal:
\(∠3, ∠8\) and \(∠2,∠ 5\)
(iv) The vertically opposite angles are:
\(∠1, ∠3; ∠2, ∠4; ∠6,∠ 8 \) and \(∠5, ∠7\)
Read more: Pairs of Angles
Match the items given in Column I with one or more items of Column II.
Column I | Column II |
(a) A plane mirror | (i) Used as a magnifying glass. |
(b) A convex mirror | (ii) Can form image of objects spread over a large area. |
(c) A convex lens | (iii) Used by dentists to see enlarged image of teeth. |
(d) A concave mirror | (iv) The image is always inverted and magnified. |
(e) A concave lens | (v) The image is erect and of the same size as the object. |
- | (vi) The image is erect and smaller in size than the object. |