1.

If ℓ ∥ k and k ∥ m, then _____

k ⊥ t.

ℓ ⊥ m.

m ⊥ t.

ℓ ∥ m.

3 answers

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

r ⊥ s

s ∥ t

t ∥ r

s ∥ r
r ⊥ s