The mistake did she make are like about the first term (8,17),like 8,as x1,and 17 as y1,,,,,,the second term:(1,4),,,like 1 as x2,,,and 4 as y2,,,,,soooo based on the formula slope;M=y2-y1\x2-x1,,,,sooo M= 4-17\1-8 sooo -13\-7 so multiply by (-1) on both sides,,, the answer is m= 13\7 or by divided it that be 1.86.....
A- Cai are used an invalid reason to justify the congruence of a pair of sides or angles.
Step-by-step explanation:
In step 4, Cai referred to the angles as "alternate interior." In fact, they are "corresponding." The reason used to justify congruence of the angles was invalid.
To do this problem, you will need to know the side lengths of the triangle. If you have those, just plug them in for a, b, and c and evaluate the square root.
Here is an example. If the sides are 3, 4, 5. It would be:
The 6 is in the formula because it is the semi-perimeter (half).