To trisect a right angle form an equilateral triangle with one vertex at the right angle and then bisect that angle of the equilateral triangle.
(It is impossible to trisect a general angle using only compass and straight edge - the right angle is a specific exception.)
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The third angle of a triangle is equal to 180 degrees minus (the sum of the first two angles).
it depends on the first two: angle3 = 180 - angle1 - angle2
Let the second angle be x degrees. The first angle would then be x + 24 degrees, and the third angle would be 4x degrees. According to the triangle angle sum theorem, the sum of all three angles in a triangle is 180 degrees. Therefore, you can set up the equation x + (x + 24) + 4x = 180 and solve for x to find the measures of all three angles.
Remember the sum of the 3 angles of a triangle = 180degrees Let angle 1 = x angle 2 = 2x angle 3 = x-20 Sum = x + 2x + x - 20 =180o 4x - 20 = 180o 4x = 200o x = 50o 2x = 100 o x - 20 = 30o angle 1 = 50o angle 2 = 100 o angle 3 = 30o