Question

Find the length of AD if AB=8cm and OD perpendicular to AB where o is the centre​

Answer 1

Answer:

AB = 8cm

AB= 2AD (because if the centre of circle ⭕ forms perpendicular on the chord, it bisects the chord)

AD=8÷2=4cm

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Answer 2

The length AD = 4 cm

Step-by-step explanation:

Given:

AB = 8cm

OD ⊥ AB

O is the centre of the circle

To find out:

The length AD

Solution:

AB is the chord of the circle, O is the centre and OD is perpendicular to AB

From theorem we know that

"A perpendicular drawn from the centre of the circle on any chord of the circle, bisects it"

Thus,

OD bisects AB

Therefore,

AD = DB = AB/2

or, AD = 8/2 = 4 cm

Hope this answer is helpful.

Know More:

Q: In the given figure,if OA=5cm,AB=8cm and OD is perpendicular to AB then .Find CD​ .

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