Question

BC=4cm, CD=3cm, CE=2cm and AC=6cm. if AB=3.2cm then find DE. I want the whole sum with method....​

Answer 1

Answer:

Answer is 2.2

Step-by-step explanation:

Since i can see angle DEC is right angled ie 90 degree

so according to pythagoras theorem

DC²=CE²+DE²

DE²=DC²-CE²

DE²=9-4

DE=√5 [approx 2.2]