Identify the polygon that has vertices P(−6,2), A(−3,3), T(0,2), and H(−3,1), and then find the perimeter and area of the polygon.
rhombus; P=6 units; A=4√ 1 0 units2

parallelogram; P=6 units; A=4√ 10 units2

rhombus; P=4√ 10√ units; A=6 units2
rhombus; P = 40 units; A = 12 units2

Respuesta :

Answer:

[tex]p=4\sqrt{10}units[/tex]

[tex]A=6units[/tex] [tex]square[/tex]

Step-by-step explanation:

Given,

[tex]P\left ( -6,2 \right ),A\left ( -3,3 \right ),T\left ( 0,2 \right ),H\left ( -3,1 \right )[/tex]

Distance between two points

[tex]h=\sqrt{\left ( x_{1}-x_{2} \right )^{2}+\left ( y_{1} -y_{2}\right )^{2}}[/tex]

[tex]PA=\sqrt{\left ( -6+3 \right )^{2}+\left ( 2-3 \right )^{2}}[/tex]

[tex]=\sqrt{9+1}=\sqrt{10}units[/tex]

[tex]AT=\sqrt{\left ( -3+0 \right )^{2}+\left ( 3-2 \right )^{2}}[/tex]

[tex]=\sqrt{9+1}=\sqrt{10}units[/tex]

[tex]TH=\sqrt{\left ( 0+3 \right )^{2}+\left ( 2-1 \right )^{2}}[/tex]

[tex]=\sqrt{9+1}=\sqrt{10}units[/tex]

[tex]HP=\sqrt{\left ( -3+6 \right )^{2}+\left ( 1-2 \right )^{2}}[/tex]

[tex]=\sqrt{9+1}=\sqrt{10}units[/tex]

[tex]PA=AT=TH=HP[/tex]        (i)

Length of diagonal

[tex]d_{1} =PT=\sqrt{\left ( -6+0 \right )^{2}+\left ( 2-2 \right )^{2}}[/tex]

[tex]=\sqrt{36+0}=6[/tex]

[tex]d_{2}=AH=\sqrt{\left ( -3+3 \right )^{2}+\left ( 3-1 \right )^{2}}[/tex]

[tex]=\sqrt{0+4}=2units[/tex]

Length of diagonals are not equal

[tex]d_{1} \neq d_{2}[/tex]                     (ii)

From above conditions this polygon is rhombus

Perimeter of rhombus =4×length of side

[tex]p=4\sqrt{10}units[/tex]

Area of rhombus

[tex]A=1/2\times d_{1}\times d_{2}[/tex]

[tex]a=1/2\times 6\times 2[/tex]

[tex]A=6units[/tex] [tex]square[/tex]