What is the surface area of the square pyramid represented by the net?

ok so do 5x3=15 divide by 2(really don't need to do that!)
15x 2=30 or 7.5x4=30
then add 3x3=9 to 30 so 9+30=39
ur answer is 39

hope this helps

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.