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TheWriter
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Verify that parallelogram ABCD with vertices A(–5, –1), B(–9, 6), C(–1, 5), and D(3, –2) is a rhombus by showing that it is a parallelogram with perpendicular diagonals.
 2 years ago
 2 years ago
TheWriter Group Title
Verify that parallelogram ABCD with vertices A(–5, –1), B(–9, 6), C(–1, 5), and D(3, –2) is a rhombus by showing that it is a parallelogram with perpendicular diagonals.
 2 years ago
 2 years ago

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JamesJ Group TitleBest ResponseYou've already chosen the best response.2
So first you need to show it is a parallelogram. You do that by showing opposite sides are parallel. You do that by showing that they have the same slopes. (or if you know vectors by showing the sides point in the same direction). Next you need to show the diagonals are perpendicular. Do you that by showing the slopes of the diagonals have the characteristic of perpendicular lines: i.e., the product of their slopes is 1. But the thing you should do before either of those steps, call it "Step Zero" is draw a diagram. Draw a diagram of the figure by sketching out the location of the four vertices and the sides between them.
 2 years ago

TheWriter Group TitleBest ResponseYou've already chosen the best response.1
Thanks. Can you answer another question for me?
 2 years ago

JamesJ Group TitleBest ResponseYou've already chosen the best response.2
I'm about to go out, but post it on the left and I will or someone will get to it, I'm sure.
 2 years ago
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