Finding the value of x and y.
x:
sin 30 = 1/x
x = 1/sin 30
x = 2
y:
cos 30 = y/2
2(cos 30) = y
1.73 = y
Now the table:
sin 30 = 1/2
cos 30 = 1.73/2
tan 30 = 1/1.73
sin 60 = 1.73/2
cos 60 = 1/2
tan 60 = 1.73/1
Hope this helps :)
Volume of the bottom rectangle:
12 x 4.5 x 5.5 = 297 cubic cm
Volume of triangle:
1/2 x 12 x 5 = 30 x 4.5 = 135 cubic cm
Total volume = 297 + 135 = 432 cubic cm
Leading Coefficient Test is the correct answer.
