Question

I need some help with proofing the attached screenshot, you can choose which proofing method to use in the answer. Thanks

Answer 1

see below

Explanation:

Given:

• q // r
• q ⊥ s

To prove:

• r ⊥ s

Proof:

Since q ⊥ s, so

3 = 2 = 90°

The other side also is 90° as the remaining angle of the straight line.

Over here:

1 + 3 = 180°

1 + 90° = 180°

1 = 180° - 90°

1 = 90°

If the angle is 90°, we can say that

r ⊥ s

proved.