Question

Radius of a circle with centre 'O' is 4√5 cm. AB is the diameter of the circle AE || BC and BC = 8 cm. Line EC is tangent to the circle at point D. Find the length of DE.

Answer 1

Answer:

Length of de=8cm by Pythagoras

Answer 2

The answer is 10 cm

Option D

Explanation in the attachment below