Volume: 350 cubic inches Height: 14 inches

What is the Top Area of the 4-sided prism shown below? (in square inches)

Any is very appreciated! (picture is provided below)not sure how to do this at all won't lie

Can someone me with my math problem pls my teacher is on my back about this

If a distance of 75 yds is measured back from the edge of the canyon and two angles are measured , find the distance across the canyon angle acb = 50° angle abc=100° a=75 yds what does c equal?