Respuesta :

check the picture below.  You can pretty much count the units off the grid.


recall A = (1/2)bh, the height or altitude is the straight distance from the point to the base, in this case, 7.

Ver imagen jdoe0001

The area of a shape is the amount of space the shape can contain. The area of polygon JKL is 24.5 square units.

Given that:

[tex]J = (-3,4)[/tex]

[tex]K =(4,4)[/tex]

[tex]L =(3,-3)[/tex]

The three vertices implies that, the polygon is a triangle.

The coordinates with the same y-axis is the base of the triangle.

This means that JK is the base.

The length of the base is the calculated using the following distance formula:

[tex]d = \sqrt{(x_1 - x_2)^2 + (y_1 - y_2)^2}[/tex]

So, we have:

[tex]JK = \sqrt{(-3 - 4)^2 + (4 - 4)^2}[/tex]

[tex]JK = \sqrt{49}[/tex]

[tex]JK = 7[/tex]

So, the base is:

[tex]Base = 7[/tex]

Next, we determine the height.

This is a point from any point on the base to the point on the same line as: vertex L

The point is (4, -3) --- see attachment for illustration.

So, we calculate the distance from (4,4) and (4,-3)

[tex]Height = \sqrt{(4 - 4)^2 + (4 --3)^2}[/tex]

[tex]Height = \sqrt{49}[/tex]

[tex]Height = 7[/tex]

The area is then calculated as:

[tex]Area = \frac 12 \times Base \times Height[/tex]

[tex]Area = \frac 12 \times 7 \times 7[/tex]

[tex]Area = \frac 12 \times 49[/tex]

[tex]Area = 24.5[/tex]

Hence, the area of the polygon is 24.5 square units.

Read more about areas at:

https://brainly.com/question/16418397

Ver imagen MrRoyal