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प्रश्न
Fill in the blanks:
An arc is a __________ when its ends are the ends of a diameter.
उत्तर
An arc is a semi-circle when its ends are the ends of a diameter.
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संबंधित प्रश्न
Prove that there is one and only one tangent at any point on the circumference of a circle.
ABC is a right triangle, right angled at B. A circle is inscribed in it. The lengths of the two sides containing the right angle are 6 cm and 8 cm. Find the radius of the incircle.
A circle is inscribed in a ΔABC touching AB, BC and AC at P, Q and R respectively. If AB = 10 cm, AR=7cm and CR=5cm, find the length of BC.
In the given figure, PA and PB are two tangents to the circle with centre O. If ∠APB = 50° then what is the measure of ∠OAB.
A is a point at a distance 13 cm from the centre O of a circle of radius 5 cm. AP and AQ are the tangents to the circle at P and Q. If a tangent BC is drawn at a point R lying on the minor arc PQ to intersect AP at B and AQ at C, find the perimeter of the ∆ABC.
AB and CD are common tangents to two circles of equal radii. Prove that AB = CD.
State, if the following statement is true or false:
Every diameter bisects a circle and each part of the circle so obtained is a semi-circle.
State, if the following statement is true or false:
The diameters of a circle always pass through the same point in the circle.
If A, B, C and D are four points such that ∠BAC = 45° and ∠BDC = 45°, then A, B, C, D are concyclic.
In the following figure, ∠ADC = 130° and chord BC = chord BE. Find ∠CBE.
