Questions A. Draw a triangle with sides measuring 8, 12, and 14.4 units. with a

Question

Questions A. Draw a triangle with sides measuring 8, 12, and 14.4 units. with a protractor measure the angles. Compute the angles trigonometrically and record in the table below. Angle A Angle B Angle C Measured Measured Measured Angle A Angle B A =tan la/b TB = tan lb/a Angle C 180° - A - B B. What would happen in your previous experiments if the wall or building were not perpendicular to the ground? C. What uncertainty is introduced into the experiment by using a tape measure to measure the sides of the triangle? D. To what degree of accuracy can you read a protractor?

Explanation / Answer

8,12 and 14.4 form pythagorean triplets which means 14.42 = 82 + 122

It also means that triangle formed would be right triangle.

Method to make right triangle with these sides.

Let angle between 12 and 14.4 side be 1.

Let angle between 9 and 14.4 side be 2.

Angle between 12 and 9 is 90 degrees.

tan(1) = 9/12 = 3/4

1 = 36.86 degrees.

tan(2) = 12/9 = 4/3

2 = 53.13 degrees.

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