Question

construct a circle of 4 cm radius and draw center O, Diameter PQ, Chord PS, Radius QR
Need a explanation by photo
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Answer 1

Answer:

Diameter = 26 cm

chord = 24 cm

Perpendicular drawn from the centre of the circle to the chord bisects the chord.

OD ⊥ AB

So, AD = DB

AO = OC (Radii)

In ∆ODA,

OD2+AD2=OA2⇒OD2+122=132⇒OD2+144=169⇒OD2=169−144=25⇒OD=5 cm