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mash [69]
3 years ago
12

Pleaseeee helpppp me What is the perimeter of ABDE

Mathematics
1 answer:
Eddi Din [679]3 years ago
8 0

<u>Given</u>:

Given that the graph of a triangle BDE.

The coordinates of the triangle are B(-2,3), D(2,6) and E(3,2)

We need to determine the perimeter of the triangle BDE.

<u>Length of BD:</u>

The length of BD can be determined by substituting the coordinates (-2,3) and (2,6) in the formula,

BD=\sqrt{(x_2-x_1)^2+(y_2-y_1)^2}

BD=\sqrt{(2+2)^2+(6-3)^2}

BD=\sqrt{(4)^2+(3)^2}

BD=\sqrt{16+9}

BD=\sqrt{25}

BD=5

<u>Length of DE:</u>

Substituting the coordinates of D(2,6) and E(3,2) in the formula, we get;

DE=\sqrt{(3-2)^2+(2-6)^2}

DE=\sqrt{(1)^2+(-4)^2}

DE=\sqrt{1+16}

DE=\sqrt{17}

<u>Length of BE:</u>

Substituting the coordinates of B(-2,3) and E(3,2) in the formula, we get;

BE=\sqrt{(3+2)^2+(2-3)^2}

BE=\sqrt{(5)^2+(-1)^2}

BE=\sqrt{25+1}

BE=\sqrt{26}

<u>Perimeter of ΔBDE:</u>

The perimeter of triangle BDE can be determined by adding the lengths of BD, DE and BE.

Thus, we have;

Perimeter=5+\sqrt{17}+\sqrt{26}

Hence, the perimeter of ΔBDE is √17 + √26 + 5

Thus, Option A is the correct answer.

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