PQ is a tangent to a circle with centre o at point P. If OPQ is
an isosceles triangle, then find OQP.
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Given :-
A circle with centre O such that
- PQ is a tangent to a circle at P.
- ∆ OPQ is isosceles.
To Find :-
- ∠ OQP
Properties Used :-
- 1. Radius and tangent are perpendicular to each other.
- 2. In right angle triangle, Hypotenuse is the longest side.
- 3. Angle opposite to equal sides are always equal.
- 4. Sum of all interior angles of a triangle is 180°.
Since,
PQ is a tangent to a circle with cente O at point P and OP is radius of circle,
Now,
it is given that
- ∆OPQ is isosceles.
Now,
- In ∆ OPQ,
We know that,
- Sum of all interior angles of a triangle is 180°.
So,
Additional Information :-
- 1. Length of tangents drawn from external point are equal.
- 2. Tangents are equally inclined to the line segment joining centre and external point.
- 3. One and only one tangent can be drawn at a point on circle.
- 4. From external point, two tangents can be drawn to a circle.
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