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प्रश्न
Write True or False. Give reason for your answer.
A circle is a plane figure.
पर्याय
True
False
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उत्तर
True.
A circle is a two-dimensional figure and it can also be referred to as a plane figure.
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संबंधित प्रश्न
In the given figure, PQ and RS are two parallel tangents to a circle with centre O and another tangent AB with point of contact C intersects PQ at A and RS at B. Prove that ∠AOB = 90º
Write True or False. Give reasons for your answers.
A chord of a circle, which is twice as long as its radius, is a diameter of the circle.
A chord PQ of a circle of radius 10 cm substends an angle of 60° at the centre of circle. Find the area of major and minor segments of the circle.
In the given figure, PO⊥QO. The tangents to the circle at P and Q intersect at a point T. Prove that PQ and OT are right bisector of each other.

Fill in the blank
Circles having the same centre and different radii are called ...........................circles.
In the given figure, a triangle ABC is drawn to circumscribe a circle of radius 2 cm such that the segments BD and DC into which BC is divided by the point of contact D, are of lengths 4cm and 3cm respectively. If the area of 2 ABC 21cm then find the lengths of sides AB and AC.

A quadrilateral ABCD is drawn to circumscribe a circle. Prove that AB + CD = AD + BC ?
Use the figure given below to fill in the blank:
________ is a radius of the circle.

If angle between two tangents drawn from a point P to a circle of radius a and centre O is 60°, then OP = `asqrt(3)`
If an isosceles triangle ABC, in which AB = AC = 6 cm, is inscribed in a circle of radius 9 cm, find the area of the triangle.
