An angle whose measure is 78 degrees!
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90-78 = 12 degrees
It is an acute angle because it's greater than 0 but less than 90 degrees
Oh, dude, if an angle is 78 degrees and you're looking for the angle of x, it really depends on the context. Like, is x a separate angle or related to the 78 degrees? If it's a separate angle, then x could be anything, man. But if it's related, like in a triangle or something, then you'd have to do some math to figure it out. Like, it's all about that geometry, you know?
These two angles total 180o therefore they are each others supplements.
Suppose the angle is x then its supplement is 180 - x so 180 - x = x - 78 that is, 258 = 2x or x = 258/2 = 129 <><><><><> Angle + Supplement = 180 Angle = Supplement + 78 Solve for the system of equations... Angle + Supplement = 180 Angle - Supplement = 78 ------------------------------------- 2 Angle = 258 Angle = 129 Supplement = 51