
(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


| So No | Base | Height | Area of parallelogram |
|---|---|---|---|
| a. | 20 cm | - | 246 \(cm^2\) |
| b. | - | 15 cm | 154.5 \(cm^2\) |
| c. | - | 8.4 cm | 48.72 \(cm^2\) |
| d. | 15.6 cm | - | 16.38 \(cm^2\) |
| Base | Height | Area of triangle |
|---|---|---|
| 15 cm | - | 87 \(cm^2\) |
| - | 31.4 mm | 1256 \(mm^2\) |
| 22 cm | - | 170.5 \(cm^2\) |



| So No | Base | Height | Area of parallelogram |
|---|---|---|---|
| a. | 20 cm | - | 246 \(cm^2\) |
| b. | - | 15 cm | 154.5 \(cm^2\) |
| c. | - | 8.4 cm | 48.72 \(cm^2\) |
| d. | 15.6 cm | - | 16.38 \(cm^2\) |
| Base | Height | Area of triangle |
|---|---|---|
| 15 cm | - | 87 \(cm^2\) |
| - | 31.4 mm | 1256 \(mm^2\) |
| 22 cm | - | 170.5 \(cm^2\) |
