Classify a triangle with side lengths 5, 12, and 13. - acute
- obtuse
- right
- not a triangle

9514 1404 393

  right

Step-by-step explanation:

You should recognize that (5, 12, 13) is a Pythagorean triple, so are the lengths of sides of a right triangle.

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In any event, you can check to see.

  5² +12² = 25 +144 = 169 = 13²

The side lengths satisfy the Pythagorean theorem, so correspond to sides of a right triangle.

Some Pythagorean triples commonly seen in algebra, geometry, and trig problems are ...

  (3, 4, 5), (5, 12, 13), (7, 24, 25), (8, 15, 17), (9, 40, 41)

when rotating a figure 180 degrees, imagine that you are able to take the figure and turn it clockwise or counterclockwise around a center point. to rotate a figure 180 degrees, you will need to apply the rule (x, y) → (-x, -y). start by using a coordinate grid with coordinates for each vertex of the figure. the center point of the coordinate grid is located at (0, 0), which is what you will rotate the figure around. write down the original coordinates of the shape you are going to rotate. then, apply the rule. for example, coordinate (1, 2) becomes (-1, -2). another example would be, coordinate (-4, -2) becoming (4, 2). after you change each original coordinate to the rotated coordinate, you will draw your new figure.

step-by-step explanation: