Question

1.
If ℓ ∥ k and k ∥ m, then _____




k ⊥ t.


ℓ ⊥ m.


m ⊥ t.


ℓ ∥ m.

Answer 1

2.
Given that s ⊥ t and r ⊥ t, what conclusion can be made?




r ⊥ s


s ∥ t


t ∥ r


s ∥ r

Answer 2

ℓ ∥ m.

Answer 3

r ⊥ s