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genyjoannerubiera
05.01.2021 •
Mathematics
use the determinant method to find the area of a triangle ABC with vertices at A (1,6) B (4,2) and C (-3,3)
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Ответ:
Area of triangle is 12.5
Step-by-step explanation:
We need to use the determinant method to find the area of a triangle ABC with vertices at A (1,6) B (4,2) and C (-3,3)
The formula used is:![Area=\pm \frac{1}{2}\left|\begin{array}{ccc}x_1&y_1&1\\x_2&y_2&1\\x_3&y_3&1\end{array}\right|](/tpl/images/1013/8300/197f5.png)
We are given:
Putting values and finding area
We take mode of -12.5 i.e. |-12.5| because area can't be negative.
So, Area of triangle is 12.5
Ответ:
In general, the students increased their standardized math scores from 5th grade to 7th grade. The students might be more familiar with the exam and they have learned more in their math classes.
Step-by-step explanation: