A polygon has the following coordinates: A(4,2), B(-3,2), C(-3,5), D(4,5). Find the length of DA.
A.
4 units
B.
C.
2 units
3 units
D.
5 units
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Option C: 3 units is the length of DA

Explanation:

The coordinates of a polygon ABCD are

We need to find the length of DA

The length of DA can be determined using the distance formula,

Let us substitute the coordinates and in the distance formula, we get,

Subtracting the terms within the bracket, we have,

Squaring the terms, we get,

Adding the terms, we have,

Thus, the length of DA is 3 units.

Hence, Option C is the correct answer.

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step-by-step explanation:

e) none of the above because the measure of angle cba is 101°