Why are you even asking, i'll edit the answer once I know.
Answer:
6 · 10⁻³
Step-by-Step Explanation:
The number 6 time 10 to the power -3 is 6 · 10⁻³ in standard form.
It's between the first and second but I think it's the second one .
Answer:
=>. PQ
=> PQ is the altitude of this given traingle .
=>. because it is making 90° angle with QR