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Musya8 [376]
3 years ago
9

What is the area of this triangle?

Mathematics
2 answers:
12345 [234]3 years ago
7 0

Answer:

Option D is correct

Step-by-step explanation:

\text{Given a triangle whose vertices are }(x_1, y_1), (x_1, y_2) , (x_3, y_3)

we have to find the area of triangle.

As we know area of triangle can be calculated by the formula

\frac{1}{2}\times base\times height

Base of triangle is the line joining the coordinates (x_1, y_1), (x_1, y_2) whose length is = (y_2-y_1)

Now height of triangle is the perpendicular line from the vertex (x_3, y_3) whose length is (x_3-x_1)

Hence, area of triangle is

\frac{1}{2}\times (y_2-y_1)\times (x_3-x_1)

Option D is correct

Ket [755]3 years ago
3 0
The answer is D.) A=1/2(y2-y1)(x3-x1).
Explanation:
Area of a triangle equals side×height.
In this case height is x3-x1, and side y2-y1.
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