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denis23 [38]
3 years ago
7

What is the area of this polygon? Enter your answer in the box. units²

Mathematics
2 answers:
Gemiola [76]3 years ago
4 0

Answer:

The area of the polygon is 39\:units^2

Step-by-step explanation:

Sketch the polygon to obtain the figure in the attachment.

The polygon can then be divided into a rectangle and a triangle.

The area of the polygon

=|VE|\times |DE|+\frac{1}{2}\times |DE|\times |AM|

We use the absolute value method to find the lengths

=|3--2|\times |3--3|+\frac{1}{2}\times|3--3|\times |5-2|

=5\times 6+\frac{1}{2}\times 6\times 2

=30+9

=39\:units^2

marta [7]3 years ago
3 0

Answer:

The area of given polygon is 39 units² .

Step-by-step explanation:

It is given that the vertices of a 5-sided polygon on a coordinate plane are M(-5, 2), V(-2, 3), E(3, 3), D(3, -3) and R(-2,-3).

The composite figure has one rectangle and one triangle.

From the below figure it is clear that the length of the rectangle is 5 units and width of the rectangle is 6 units.

The area of a rectangle is

A=length\times width

A_1=5\times 6=30

The area of the rectangle is 30 units² .

From the below figure it is clear that the base of the triangle is 6 units and height of the triangle is 3 units.

The area of a triangle is

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

A_2=\frac{1}{2}\times 6\times 3=9

The area of the triangle is 9 units² .

The area of composite figure is

A=A_1+A_2

A=30+9=39

Therefore the area of given polygon is 39 units² .

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