Question

why did Helen find geometrical figure most difficult to understand? how did her difficulties disappear?

Answer 1

Helen find geometrical fig. most difficult at first time because there were no embossed books of geometry and algebra available for her....

so it was difficult to know geometrical fig. for her...

the fig. made on cushion with the help of wire were also difficult to understand...

when the embossed books get available here difficult disappeared...