contestada

What is the area, in square units, of the polygon shown here?

A. 14 units^2
B. 16 units^2
C. 17 units^2
D. 19 units^2

What is the area in square units of the polygon shown here A 14 units2 B 16 units2 C 17 units2 D 19 units2 class=

Respuesta :

D is the correct answer

Answer:

D. [tex]19units^{2}[/tex]

Step-by-step explanation:

We can modeling this problem as two rectangles, The first one in the left of the image as a rectangle with base [tex]b_{1} =8units[/tex] and height [tex]h_{1} =2units[/tex], and the second one in the right bottom of the image  as a rectangle with base [tex]b_{2} = 5units - 2 units=3units[/tex] (the diference of 5units - 2 units is the base of the second rectangle) and height [tex]h_{2} =1unit[/tex].

The area of rectangle is [tex]a=bxh[/tex]

Calculating the area of each rectangle.

Rectangle 1 [tex]a_{1} =8unitsx2units=16units^{2}[/tex]

Rectangle 2 [tex]a_{2} =3unitsx1unit=3units^{2}[/tex]

So, in order to calculate the total area of the polygon shown in the image.

[tex]a_{total} =a_{1} +a_{2} \\a_{total} =16units^{2} +3units^{2} \\a_{total} =19units^{2}[/tex]