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In the triangle the angle at a is 40 degrees less than the angle at b and 20 degrees less than the angle at c what is the size of each angle?
if the angle at a equals X then the angle at b equals X+40 and the angle at c equals X+20 the sum of the angels in a triangle is 360 degrees so: X + X+40 + X+20 = 360 3X + 60 = 360 3X = 300 X = 100.
What is the name of an angle less than 90 degrees?
An angle less than 90 degrees is called an acute angle.
Which angle is greater than 0 degrees but less than 90 degrees?
An angle that is less than 900 is called an acute angle.
What is a angle called that is over 12 degrees?
An angle greater than 0 but less than 90 degrees is an acute angle An angle of 90 degrees is a right angle An angle greater than 90 but less than 180 degrees is an obtuse angle An angle greater than 180 degrees is a reflex angle
What are four ways to name an angle?
Acute angle: greater than 0 but less than 90 degrees Right angle: exactly 90 degrees Obtuse angle: greater than 90 but less than 180 degrees Reflex angle: greater than 180 but less than 360 degrees
