Chapter 10.3, Problem 8E

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7th Edition

Alexander + 2 others

ISBN: 9781337614085

Textbook Problem

*In Exercises 5 to 10, the real numbers a, b, c, and d are positive.*

Consider the quadrilateral with vertices at

To determine

**To explain:**

Explanation

The given diagram is shown below.

To prove

Only one pair of opposite sides are parallel.

That is slope of

That is slope of

Find the slope of

Formula for slope joining the line segment.

Slope is denoted by

Here

Substituting the* x* and* y* co-ordinates.

Then, find the slope of

Substituting the* x* and* y* co-ordinates.

Hence,

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