Well, to write the definition of "Perpendicular lines form right angel" using "if and only if". the sentence would become :
<em>
</em><em>Two lines are perpendicular if and only if they form a right angle
</em><em>
</em><em />Hope this helps
Answer:
250%
Step-by-step explanation:
97.50 / 8.75 is 5.40 so yeah thats the awnser and stuff