Question

Please answer this question in detail.... ​

Answer 1

Answer:

I studied this subject

but now I forgot the answer

Answer 2

Answer:

∠1 = 70°, ∠3 = 70°, ∠4 = 110° and ∠ 8 = 110°

Step-by-step explanation:

A transversal t intersects two parallel lines l and m.

∠ 1 = ∠ 5 (corresponding angles)

But ∠ 5 = 70° (given)

∠ 1 = 70°

But ∠ 3 = ∠ 5 (Alternate angles)

∠ 3 = 70°

∠4 + ∠5 = 180° (Sum of co-interior angles)

⇒ ∠4 + 70° = 180°

⇒ ∠4 = 180° – 70°

⇒ ∠4 = 110°

But ∠ 4 = ∠ 8 (corresponding angles)

∠ 8 = 110°

Hence ∠ 1 = 70°, ∠3 = 70°, ∠4 = 110° and ∠ 8 = 110°