What is the GCF of 56 and 27
2 answers:
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Use the distance formula to find the length of the sides, then add them up to find the perimeter.
For points in the form of (x1, y1), (x2, y2).
(-1, 2), (3, 1)
(3, 1), (7, 2)
(7, 2), (-1, 2)
So the perimeter will be:
For points in the form of (x1, y1), (x2, y2).
(-1, 2), (3, 1)
(3, 1), (7, 2)
(7, 2), (-1, 2)
So the perimeter will be:
Answer: D) Reflect over x-axis
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Explanation:
When we do this type of reflection, a point like (1,2) moves to (1,-2).
As another example, something like (5,-7) moves to (5,7)
The x coordinate stays the same but the y coordinate flips in sign from positive to negative, or vice versa.
We can say that as a general way to represent the transformation. Note how y = f(x), so when we make f(x) negative, then we're really making y negative.
If we apply this transformation to every point on f(x), then it will flip the f(x) curve over the horizontal x axis.
There's an example below in the graph. The point A(2,8) moves to B(2,-8) after applying that reflection rule.
From the side/angle inequality, we see that the smallest angle of a triangle must be opposite its shortest side. In this case, that angle is opposite the shortest side so our answer is
As for finding its measure (which I'm aware the question probably didn't ask for), we can use the law of cosines: