4. Three vertices of rectangle are A(2,2), B(2,-2) and C(-3,-2). Plot the points then find the co-
ordinates of he missing vertex.
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Answer:
Given:
- Three vertices of rectangle are A(2,2), B(2,-2) and C(-3,-2).
Find:
- Plot the points then find the co-ordinates of he missing vertex.
Calculations:
- Let "D" vertex be (x and y).
So,
⇢ x + 2/2 and x + 3/2
⇢ 2 - 3/2 and 2 - 2/2
⇢ x + 2/2 and y - 2/2 = -1/2 and 0.
⇢ x + 2 = -1
⇢ y - 2 = 0
⇢ x = -1 - 2
⇢ y = 2
Therefore, -3 and 2 is the fourth vertex of D.
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