The intersection of the diameter and the chord at 90 degrees can be very close to the centre and so the two lengths coming from the point of intersection to the radius are assumed to be equal, but they aren’t. Place the midpoint of the protractor on the vertex, line up one arm with the base line of the protractor, measure the angles with 1-degree increments using the inner scale in these pdfs on measuring angles. Incorrect assumption of isosceles triangles Measuring Angles using the Protractor Inner Scale.This also includes the inverse trigonometric functions. The incorrect trigonometric function is used and so the side or angle being calculated is incorrect. ![]() The missing side is calculated by incorrectly adding the square of the hypotenuse and a shorter side, or subtracting the square of the shorter sides. The only case of this is when both angles are 90^o.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |