What is the volume of the figure below?
30feet -
60 feet
90 feet
120 feet

The fence around a quadrilateral-shaped pasture is 3a^2+15a+9 long. three sides of the fence have the following lengths: 5a, 10a-2, a^2-7. what is the length of the fourth side of the fence?

Combine the information in the problem and the chart using the average balance method to solve the problem.

In triangle △abc, ∠abc=90°, bh is an altitude. find the missing lengths. ac=26 and ch=8, find bh.