Question

pls answer this questions​

Answer 1

Step-by-step explanation:

SOLUTION

(1) Using tangent secant segment theorem, we have

AB2 = AC × AD

⇒ 122 = 8 × AD

⇒ AD =

1448

= 18 units

(2)DC = AD − AC = 18 − 8 = 10 units

(3) CD is the chord of the circle with centre O.

Also, OE ⊥ CD (seg OE ⊥ seg AD)

∴ DE = EC =

DC2=102

units (Perpendicular drawn from the centre of a circle on its chord bisects the chord)

Answer 2

Answer:

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