1. Draw a line AB, take a point X on it. Construct a perpendicular XY on it using set square. How many
such lines can be drawn?

Hello! i hope this
since the cosine is the ratio of the adjacent side to the hypotenuse, you can see that cos 60° = ½. answer. according to the property of cofunctions (topic 3), sin 30° is equal to cos 60°. sin 30° = ½.

Y’all got to do it all over