acute means less than 90 degrees like an angle like this < is acute and if an angle is more than 90 degrees its obtuse. :)
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A polygon, that is, a plane area bounded by any number (>2) of straight lines can have acute angles.
Just about any shape that isn't a circle can have two or more acute angles. But with some of them, you need to make them have acute angles.
no. Equilateral is the same amount of sides on 2 different shapes. and acute is smaller than a 90 degree angle.
an acute angle is always less the 90 degrees. its different shapes depending on the number of degrees. example would be this symbol on a keyboard: <