Using a calculator: cos 70 deg = 0.342. Note: it sounds as tho' you were given several answer options. Where are they?
Volume=legnth times width times height
since it is a cube, legnt=width=height so
volume=height^3 or width^3 or legnth ^3 so
height =5 so
5^3=5 times 5 times 5=125 cubic inches
the answer is C
