Q. A triangle has vertices on a coordinate grid at A(10,3),B(10,−10), and C(−3,3). What is the length, in units, of AB ?Answer: □ units
Identify Coordinates: Identify the coordinates of points A and B. Point A has coordinates (10,3) and point B has coordinates (10,−10).
Calculate Length: Use the distance formula to calculate the length of AB. Since both points A and B have the same x-coordinate, the length of AB is the difference in their y-coordinates. Length of AB = ∣y2−y1∣=∣−10−3∣=∣−(10+3)∣=∣−13∣=13
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