WILL GIVE A MEDAL IF YOU HELP WITH ANSWERS!!!!!
Three vertices of a rectangle are given. Find the coordinates of the fourth vertex.
(-2,4),(4,0),(2,-3)
A.(-4,-1)
B.(-4,0)
C.(-4,1)
D.(-4,2)
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OpenStudy (anonymous):
PLEASE help!!!
OpenStudy (mrnood):
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The above is a sketch showing the 3 points given as crosses, and the 4th point as a circle.
OpenStudy (anonymous):
So D?
OpenStudy (moses238):
C
OpenStudy (anonymous):
Why
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OpenStudy (mrnood):
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because it is a rectangle you know that the 2 lines I drew are parallel and equal in length
OpenStudy (anonymous):
others said D
OpenStudy (moses238):
Make a graph
OpenStudy (mrnood):
@Rosalinda03 you cannot trust what 'others' say
OpenStudy (anonymous):
@MrNood
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OpenStudy (anonymous):
ok so it would be C
OpenStudy (mrnood):
the difference in x and y between the 2 points on the top line (which you DO know) must be the same as the difference on the bottom line
SO
you can work out the 4th point
OpenStudy (anonymous):
how
OpenStudy (mrnood):
@Rosalinda03 just look at my drawings - that IS the 'graph' you need
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