Question

A rocket travels 40 km vertically upward at a 90° angle from point A to point B. It then moves a distance of 40 km along the line segment BC, as shown below:

ABCD is a trapezoid with AB equal to 40 kilometers and BC equal to 40 kilometers. A perpendicular to line CD is shown with a dashed line. This perpendicular passes through point B. The measure of the angle between BC and the perpendicular is 30 degrees.

What is the height of the rocket, at point C, from the ground?

80 km

40 km

60 km

70 km

Answer 1

I really need help with this question so could somebody please help walk me through this?

Answer 2

@agreene

Answer 3

@iGreen