Karen says every equilateral triangle isacute. is it true? explain. sorry i just don't know

No problem, that's why exists! :) Karen is right, as every equilateral triangle has equal angles. The angles in every triangle must add up to 180°, and if all the angles are equal in an equilateral triangle, that must mean each angle is 60°. (180 ÷ 3 (because three sides in a triangle) = 60). Anything under 90° is acute, that means Karen is right because 60 < 90, and is therefore acute.