Calculate the volume of earth that must be excavated, in cubic yards (cu. yd.), to make a 500- foot long trench that is 20-feet wide at the top, 10-feet wide at the bottom, and 15-feet
deep

Determine whether the quadrilateral below is a parallelogram. justify/explain your answer (this means back it up! give specific information that supports your decision. writing just "yes" or "no" will result in no credit.)

Look at this pattern ; 1,4,9, number 10000 belongs in this pattern . what’s the place of this number?

How are sas and sss used to show that two triangles are congruent?