Find the length of the diagonal AD in the pentagon ABCDE shown in the coordinate plane.

A. √ 89 units
B. 5 units
C. √ 73 units
D. √ 41 units

Find the length of the diagonal AD in the pentagon ABCDE shown in the coordinate plane A 89 units B 5 units C 73 units D 41 units class=

Respuesta :

Answer:

[tex]\sqrt{73}[/tex] units.

Therefore, Option C is correct.

Step-by-step explanation:

We have given a pentagon ABCDE

We need to calculate its length

That means we have to find the distance of AD

So, coordinates of A(1,6) and D(4,-2)

Using distance formula:

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

Here,[tex]x_1=1,y_1=6,x_2=4,y_2=-2[/tex]

On substituting the values we will get:

[tex]\sqrt{(4-1)^2+(-2-6)^2}[/tex]

On simplification:

[tex]\sqrt{3^2+(-8)^2}[/tex]

[tex]\sqrt{9+64}[/tex]

[tex]\sqrt{73}[/tex].

Hence, the length of AD is  [tex]\sqrt{73}[/tex] units.

Therefore, Option C is correct.