# How do you know which line is the base and which line is the height in a trapezoid?

Look for Parallel lines.

In a trapezoid, there are 2 bases. The bases are the lines parallel to each other. The other 2 lines are called the legs. Height is the distance of a perpendicular line from a base angle to the opposite base.

Here's a diagram I made that might help clarify

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In a trapezoid, the base refers to the longer of the two parallel sides, while the height is the perpendicular distance between the two bases.

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When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

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- Is a rhombus a parallelogram?
- What are the diagonals of quadrilateral #MNOP#?
- A parallelogram has sides with lengths of #12 # and #8 #. If the parallelogram's area is #64 #, what is the length of its longest diagonal?
- A parallelogram has sides with lengths of #14 # and #15 #. If the parallelogram's area is #42 #, what is the length of its longest diagonal?

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