3 years ago

I need help with this.

1 answer:

3 0

angle is the figure formed by two rays, called the sides of the angle, sharing a common endpoint, called the vertex of the angle.

sides is particular type of line segment joining two vertices in a polygon, polyhedron, or higher-dimensional polytope.

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3 years ago

What is the length of segment CD question mark

blagie [28]

Answer:

CD = two square root of 10 end square root

Step-by-step explanation:

To find the length of a segment, use the distance formula. Substitute the order pairs for the endpoints of the segment. CD has the end points (-7, -4) and (-1, -2).

$d = \sqrt{(y_2-y_1)^2 + (x_2-x_1)^2} \\\\d = \sqrt{(-4--2)^2 + (-7--1)^2} \\\\d = \sqrt{-2^2 + -6^2}\\\\d = \sqrt{4 + 36}\\\\d=\sqrt {40} = 2\sqrt{10}$