43 because 43 + 47 = 50.
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The angles are 157.5 degrees and 22.5 degrees
It is: 87+3 = 90 degrees
In each interior angle: 128o 34' 17.14''
40,000 = forty thousand 7 = seven 40,007
Let a be the angle. 1. Zero: a = 0 (angle is equal to zero degrees) 2. Acute: 0 < a < 90 (the angle is between 0 and 90 degrees) 3. Right: a = 90 (the angle is 90 degrees) 4. Obtuse: 90< a < 180 (The angle is between 90 and 180 degrees) 5. Straight: a = 180 (the angle is a straight line it is equal to 180 degrees) 6. Reflex: 180 < a < 360 ( the angle is between 180 and 360 degrees) 7. Full (revolution): a = 360 (The angle is equal to 360 degrees a full circle.)