Triangle Figure Adjustment: Achieving Accurate Measurements

Learn how to adjust figures in a chain of triangles to ensure accurate measurements. Calculate error and correction based on angles for precise results.

00:00:01 In this video, we learn about figure adjustment by adjusting triangles to ensure that their angles sum up to 180 degrees.

馃攳 Figure adjustment involves adjusting the triangle so that the summation of its angles is 180 degrees.

馃敘 We can use the angles adjusted in the station adjustment to perform figure adjustment.

馃搻 By calculating the angles of triangle BHG (47掳59'38''), HGF (66掳50'29''), and FGB (65掳6'21''), the summation is 179 degrees.

00:01:10 This video explains how to adjust figures in a chain of triangles. It shows how to calculate the error and correction needed for accurate measurements.

馃攽 The error in the chain of triangles adjustment is calculated by subtracting the measured angle from 180 degrees.

馃搹 To correct the error, divide it by three and add the result to the measured angles.

馃敘 After the adjustment, the angle B becomes 48 degrees, 0 minutes, and 48.667 seconds.

00:02:17 Adjusting triangles using figure adjustment with angles h, f, and i at 66掳51'39.667'', 65掳7'31.667'', and 52掳 respectively.

馃攽 The video discusses the adjustment of a triangle using figure adjustment.

馃攽 The angles h and f of the triangle are adjusted to 66 degrees 51 minutes 39.667 seconds and 65 degrees 7 minutes and 31.667 seconds, respectively.

馃攽 Another example is demonstrated with the adjustment of triangle iem or triangle ime where angle i is set to 52 degrees.

00:03:19 Explanation on how to adjust figures by calculating the error and correction based on angles.

馃敘 The video discusses how to calculate the error and correction in a chain of triangles adjustment.

鈿栵笍 By summing up the angles, one can determine the total degree of error.

馃攧 To find the correction, the error is divided by three.

00:04:22 Adjust the angles of a triangle using figure adjustment to obtain the corrected values: 52掳 5' 20.33", 27掳 16' 12.33", and 100掳 38' 27.3".

馃搻 The video discusses how to adjust the angles in a chain of triangles.

馃搹 By adding a correction value to each angle, the angles can be adjusted accordingly.

馃搳 The final step is to tabulate the adjusted angles in a table.

00:05:24 The video discusses the modification of angles using station adjustment and figure adjustment.

馃搻 Figure adjustment is a method used to modify angles in a chain of triangles.

馃攧 Figure adjustment follows the station adjustment in modifying angles.

馃挕 Figure adjustment is an important technique in surveying and geometry.

Summary of a video "Chain of Triangles Adjustment - Figure Adjustment" by Fech on YouTube.

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