Theorems

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The Distance Formula

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

Distance & Midpoint 9-2 ME Worksheet

Sum of the Sides of a Triangle

Thm: The sum of two sides of any triangle must be greater than the third side

Example: Given two sides of a triangle are $8 i n a n d 11 i n$ , Find all the possible lengths of the third side (also known as S_3) Solution: We know that 8 + 11 must be greater than S_3

Theorems

From MHSHS Wiki

The Distance Formula

Sum of the Sides of a Triangle

Thm: The sum of two sides of any triangle must be greater than the third side

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