You put the names of all the students in your class in a paper bag. There are 14 boys and 20 girls. If you draw a name at random
1 answer:
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Answer:
Square
Step-by-step explanation:
Plot the vertices of the quadrilateral PQRS on the coordinate plane (see attached diagram). The diagram shows that this is a square. Let's prove it.
1. Find all sides lengths:
All sides have the same lengths.
2. Find the slopes of all lines:
Since the slopes of PQ and RS are the same, lines PQ and RS are parallel. Since the slopes of QR and SP are the same, lines QR and SP are parallel.
The slopes and
have the product of
then lines are pairwise perpendicular.
This means PQRS is a square.
