A person 2.1 m tall casts a shadow 5.3 m long. At the same time, a building casts a shadow 34 m long. How tall is the building?

What is the correlation coefficient between the variables? round to three decimal places. enter your answer in the box

Ineed to know the answer to this algebra question.

To prove that angle def = angle dgf by sas, what additional information is needed? def congruent to dgf dfe congruent to dfg de congruent to dg dg congruent to gf