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Given:
The figure of a triangle DEF.
To find:
The coordinate of image of given triangle after reflection over y-axis.
Solution:
The vertices of given triangle are D(1,4), E(4,3), F(2,0).
If a figure is reflected over the y-axis, then the rule of reflection is
Using this rule, we get
Therefore, the coordinates of image are D'(-1,4), E'(-4,3) and F'(-2,0).
Answer:
<h2>Explanation:</h2>For any right triangle, the longest side is called the hypotenuse. Therefore, by Pythagorean theorem it is true that:
Where:
x: Hypotenuse
a, b: The other two sides.
For instance, if we have a right triangle whose sides measure:
Then, the hypotenuse can be found as: