In the diagram, right-angled triangles AED and BFC are constructed inside rectangle ABCD so that F lies on DE. If AE=21,ED=72 and BF=45, what is the length of AB?
Answer Choices
A. 50
B. 48
C. 52
D. 54
E. 56
In the diagram, right-angled triangles AED and BFC are constructed inside rectangle ABCD so that F lies on DE. If AE=21,ED=72 and BF=45, what is the length of AB?
Answer Choices
A. 50
B. 48
C. 52
D. 54
E. 56