# Tangent 3

In a circle with centre O radius is 4√5 cm. EC is the tangent to the circle at point D. Segment AB IS THE DIAMETER of given circle. POINT A is joined with POINT E and POINT B is joined with POINT C. Find DC if BC IS 8cm.

Result

x =  NAN cm

#### Solution: Leave us a comment of example and its solution (i.e. if it is still somewhat unclear...):

Showing 3 comments: Matikar
Problem has no solution because  r > c Math student
Hey I can't get this coz I never started this yet Math student
I can't understand it plz get another example #### To solve this example are needed these knowledge from mathematics:

Pythagorean theorem is the base for the right triangle calculator.

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