An angle of 60 is an acute angle. There are 12 numbers in a circle of the clock, corresponding to 360 degrees, that is, the angle between every two adjacent numbers is 360 ÷ 12 = 30 degrees, and the hour hand and minute hand at 10 point correspond to 10 and 12 respectively, so the angle is.

An angle (right angle) greater than 0 and less than 90 is a bad angle. The sum of the two acute angles is not necessarily greater than the right angle, but it must be less than the right angle. The acute angle must be the first quadrant angle, and the first quadrant angle is not necessarily the acute angle.

Extended data:

A measure of the amount of rotation when either of two intersecting lines overlaps the other. Rotation is on the plane of two straight lines and around the intersection.

Angle is the unit of measuring angle, and the symbol is 0. A fillet is divided into 360 equal parts, and each part is defined as 1 degree (1 degree).

Use the number 360, because it is easily divisible. 360 has 22 real factors besides 1 and itself, including 2 to 10 except 7, so many special angles are integers.

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