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PLEASE HELP! THIS IS DUE TODAY!!

How do you find the base of a trapezoid? The trapezoid is labeled as MNOP, the median being QR. PO is 13 (top base), and QR is 18. How do I find MN?

2 Answers

3 votes

To find the base of a trapezoid, you need to know the length of at least one of the bases and the height (or the length of the median). Since you know that PO is 13 (top base) and QR is 18 (median), you can use the following formula to find the length of the bottom base (MN):

Height x ((base1 + base2) / 2) = Area

Where the height is the length of the median (QR) and base1 and base2 are the lengths of the two bases (PO and MN).

So, in this case, you would have:

QR x ((PO + MN) / 2) = Area

18 x ((13 + MN) / 2) = Area

Solving for MN:

MN = (2 * Area) / QR - PO

So you can fill the area of trapezoid and substitute the values in the above formula.

User Constantin Stan
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7.1k points
2 votes

Answer: 23

===============================================

Step-by-step explanation:

x = length of MN

A trapezoid has exactly one pair of parallel sides. The median is parallel to those mentioned sides. Think of it like the median to a highway.

A useful property is the median is the average of the parallel sides. We add up the outer sides, then divide by 2, and it gets us the median.

So,

QR = (MN + PO)/2

18 = (x + 13)/2

18*2 = x+13

36 = x+13

x = 36-13

x = 23

Side MN is 23 units long.

The diagram is below.

PLEASE HELP! THIS IS DUE TODAY!! How do you find the base of a trapezoid? The trapezoid-example-1
User Mrfsb
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