IDNLearn.com: Where your questions are met with thoughtful and precise answers. Explore thousands of verified answers from experts and find the solutions you need, no matter the topic.

Select the correct answer from each dropdown menu.

[tex]$\triangle ABC$[/tex] has vertices [tex]$A (-2, 5)$[/tex], [tex]$B (-4, -2)$[/tex], and [tex]$C (3, -4)$[/tex].

The length of [tex]$AB$[/tex] is [tex]$\square$[/tex].
The length of [tex]$AC$[/tex] is [tex]$\square$[/tex].
The length of [tex]$BC$[/tex] is [tex]$\square$[/tex].
Therefore, the triangle is [tex]$\square$[/tex].


Sagot :

To determine the correct answers, we need to calculate the lengths of the sides of triangle \( \triangle ABC \) using the distance formula. The distance formula between two points \((x_1, y_1)\) and \((x_2, y_2)\) is given by:

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

Let's calculate the distances:

1. Length of \( AB \)

The coordinates of points \( A \) and \( B \) are \((-2, 5)\) and \((-4, -2)\), respectively.

[tex]\[ AB = \sqrt{((-4) - (-2))^2 + ((-2) - 5)^2} = \sqrt{(-2)^2 + (-7)^2} = \sqrt{4 + 49} = \sqrt{53} \approx 7.2801 \][/tex]

2. Length of \( AC \)

The coordinates of points \( A \) and \( C \) are \((-2, 5)\) and \((3, -4)\), respectively.

[tex]\[ AC = \sqrt{((3) - (-2))^2 + ((-4) - 5)^2} = \sqrt{(5)^2 + (-9)^2} = \sqrt{25 + 81} = \sqrt{106} \approx 10.2956 \][/tex]

3. Length of \( BC \)

The coordinates of points \( B \) and \( C \) are \((-4, -2)\) and \((3, -4)\), respectively.

[tex]\[ BC = \sqrt{((3) - (-4))^2 + ((-4) - (-2))^2} = \sqrt{(7)^2 + (-2)^2} = \sqrt{49 + 4} = \sqrt{53} \approx 7.2801 \][/tex]

Having calculated the side lengths:
- \( AB \approx 7.2801 \)
- \( AC \approx 10.2956 \)
- \( BC \approx 7.2801 \)

To classify the triangle, we compare the side lengths:
- Since \( AB \approx 7.2801 \) and \( BC \approx 7.2801 \) and \( AC \approx 10.2956 \), we notice that only two sides are equal.
- This makes \( \triangle ABC \) an isosceles triangle.

So, the final answer is:
- The length of \( AB \) is \( \approx 7.2801 \)
- The length of \( AC \) is \( \approx 10.2956 \)
- The length of \( BC \) is \( \approx 7.2801 \)
- Therefore, the triangle is isosceles