Math Problem Statement

the vertices of a triangle are A (-8,2), B (-2,-6), and C (-8,-6). What is the length of the median drawn from vertex C to AB?

Solution

To calculate the length of the median drawn from vertex C(8,6)C(-8, -6) to the side ABAB, follow these steps:

Step 1: Find the midpoint of side ABAB

The coordinates of AA and BB are: A(8,2),B(2,6)A(-8, 2), \, B(-2, -6) The midpoint formula is: Midpoint=(x1+x22,y1+y22)\text{Midpoint} = \left(\frac{x_1 + x_2}{2}, \frac{y_1 + y_2}{2}\right) Substituting the coordinates of AA and BB: Midpoint of AB=(8+(2)2,2+(6)2)=(102,42)=(5,2)\text{Midpoint of } AB = \left(\frac{-8 + (-2)}{2}, \frac{2 + (-6)}{2}\right) = \left(\frac{-10}{2}, \frac{-4}{2}\right) = (-5, -2)

Step 2: Calculate the distance between C(8,6)C(-8, -6) and the midpoint of ABAB

The formula for the distance between two points (x1,y1)(x_1, y_1) and (x2,y2)(x_2, y_2) is: Distance=(x2x1)2+(y2y1)2\text{Distance} = \sqrt{(x_2 - x_1)^2 + (y_2 - y_1)^2} Substituting C(8,6)C(-8, -6) and the midpoint of AB(5,2)AB(-5, -2): Distance=((5)(8))2+((2)(6))2\text{Distance} = \sqrt{((-5) - (-8))^2 + ((-2) - (-6))^2} Distance=(3)2+(4)2\text{Distance} = \sqrt{(3)^2 + (4)^2} Distance=9+16=25=5\text{Distance} = \sqrt{9 + 16} = \sqrt{25} = 5

Final Answer:

The length of the median drawn from vertex CC to side ABAB is: 5units\boxed{5 \, \text{units}}


Would you like more details or further clarifications? Here are 5 related questions to expand your understanding:

  1. How do you find the centroid of a triangle using its vertices?
  2. What is the formula for calculating the length of a median in a triangle when all vertices are known?
  3. How can the area of triangle ABCABC be calculated using its vertices?
  4. What are the properties of medians in a triangle?
  5. How is the distance formula derived from the Pythagorean theorem?

Tip: Always verify your calculations by double-checking the midpoint and distance formula for accuracy.

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Math Problem Analysis

Mathematical Concepts

Coordinate Geometry
Midpoint of a Line Segment
Distance Formula

Formulas

Midpoint Formula: (x1 + x2)/2, (y1 + y2)/2
Distance Formula: sqrt((x2 - x1)^2 + (y2 - y1)^2)

Theorems

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Suitable Grade Level

Grades 8-10