James is given the diagram below and asked to prove that given: de = fe, and eo forms the angle bisector of prove:

not only in mathematics, scientific proof also are required in the other field of science. also maths proofs are of particular structure, containing steps and logics. so proving is like doing science, it is science. that's why it is important to prove. 

an inaccurate proof leads to errors, or stating results that are not accurate.  which wil mess the probelm up you dont want this

x = 12

y = 1

for the points!

the answer to this is a. a^2 + b^2 = c^2