Question

solve question number 12

Answer 1

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we know that this is a right triangle >>
by using the Pythagoras thearom we will find the OD.
we have AB=3cm and OB= 4cm given above
(AO)²=(OB)²+(AB)²
(AO)²=(4)²+(3)²
(AO)²=16+9
(AO)²=25
AO=5
we
as we O is the midpoint of AD
it divide the line into two half
>> AO=OD
it means AO=OD=5