5. If the points P(5, 3) Q(-3, 3) R(-3, -4) and S form a rectangle, then find the coordinate of S.
Answers
The coordinate of S. = ( 5 , - 4) If the points P(5, 3) Q(-3, 3) R(-3, -4) and S form a rectangle,
Step-by-step explanation:
Let Say S coordinates = ( x , y)
PQRS is rectangle
slope of RS = Slope of PQ
=> ( y - (-4))/(x - (-3) = (3 - 3)/(5 -(-3))
=> ( y +4)/(x - 5) = 0
=> y = -4
PS = QR
=> (-4 - 3)² + ( x - 5)² = (-3 - (-3))² + (3 - (-4))²
=> (7)² + (x - 5)² = 7²
=> x - 5 = 0
=> x = 5
( 5 , - 4)
the coordinate of S. = ( 5 , - 4)
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The coordinates of S is at (5,-4).
Step-by-step explanation:
When P(5,3),Q(-3,3),R(-3,-4) and S form a rectangle .
We know that
Opposite sides of rectangle are equal.
Therefor, PS=QR, RS=PQ
Distance formula between two points ( and ( is given by
Distance=
Using the formula
Length of QR=
Because distance is always positive.
Let coordinates of S is (x,y).
Length of PS=
Substitute
Squaring on both sides then we get
On comparing both sides then we get
Substitute y-3=7
Then, we get
y=7+3=10
Substitute y-3=-7
y= 10 is not possible if we take y=10 then the four point do not make rectangle.
It is clear from attached figure.
Therefore, the coordinates of S is at (5,-4).
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