0 be a point at any angle P inside the central circle. If the radius of the circle is 5 cm long and OP = 3 cm. Determine the minimum length of point.
Answers
Answer:
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Step-by-step explanation:
Clearly ∠OPT=90
o
Applying Pythagoras in △OPT, we have
OT
2
=OP
2
+PT
2
⇒13
2
=5
2
+PT
2
⇒PT
2
=169−25=144
⇒PT=12 cm
Since lengths of tangents drawn from a point to a circle are equal. Therefore,
AP=AE=x(say)
⇒AT=PT−AP=(12−x)cm
Since AB is the tangent to the circleE. Therefore, OE⊥AB
⇒∠OEA=90
o
⇒∠AET=90
o
⇒AT
2
=AE
2
+ET
2
[Applying Pythagoras Theorem in △AET]
⇒(12−x)
2
=x
2
+(13−5)
2
⇒144−24x+x
2
=x
2
+64
⇒24x=80
⇒x=
3
10
cm
Similarly, BE=
3
10
cm
∴AB=AE+BE=(
3
10
+
3
10
)cm=
3
20cm
Step-by-step explanation:
I think Question is in correct
Reason 1:-
we can not determine the length of the point because it has no measurement.
Reason 2:-
take P and O with 3 cm and join them and also radius 5cm if we join them the triangle is formed with 5cm ,5cm and 3 cm there is nothing to find.
Reason 3:-
We can find the lenth of the point from the centre and other end but it has no given