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.
Answer:
two legs are 3 and 4, hypotenuse is 5
Step-by-step explanation:
AB is the longest one, and is opposite the right angle
Answer:
45) 35.75 sq km
46) 24.5 sq km
Step-by-step explanation:
Area of Square:
A= 
45) A = (11)(6.5) ÷ 2 =
46) A = (10)(4.9) ÷ 2 =
This is the same as saying x*y+25=0.
Also, x*y=-25.
The solution (if you had to find it) would be -5 and 5.
To graph, it would be y=-25/x
Edit: This can be simplified down to y=-5 since it is a constant so it would be a straight line on the y-axis down at -5.