Given points A (100m), B (200m), and C (400m), determine the strike line and dip line of a coal seam using these points.

Welcome back Blessing — missed you this week. Here are the steps to solve the problem: a) Construct the strike lines and dip line for the coal seam Step 1: Identify the elevations of points A, B, and C. Point A is at 100\,m. Point B is at 200\,m. Point C is at 400\,m. Step 2: Locate the 200\,m point on line AC. Since A is 100\,m and C is 400\,m, the 200\,m point (let's call it P_200) on the line segment AC is located one-third of the way from A to C. This is because the elevation difference from A to P_200 is 200\,m - 100\,m = 100\,m, and the total elevation difference from A to