AB is a diameter of a circle and AC is its chord such that `angleBAC=30^(@)`. If the tengent at C intersects AB extended at D, then BC=BD.

Seg AB is a diameter of a circle with centre P. Seg AC is a chord. A secant through P and parallel to seg AC intersects the tangent drawn at C in D. Prove that line DB is a tangent to the circle.

If AOB is a diameter of a circle and C is a point on the circle, then AC^(2)+BC^(2)=AB^(2) .

AB is diameter of a circle with centre 'O'. CD is a chord which is equal to the radius of the circle. AC and BD are extended so that they intersect each other at point P. Then find the value of angleAPB .

AB is the diameter of a circle whose centre is O. DC is a chord of that circle. If DC||AB and angleBAC=20^(@) then angleADC =?

In the adjoinig figure, AB is a diameter of the circle, CD is a chord equal to the radius of the circle. AC and BD when extended intersect at a point E. Prove that angleAEB=60^@ .

In Fig.10.32, AB is a diameter of the circle, CD is a chord equal to the radius of the circle, AC and BD when extended intersect at a point E.Prove that /_AEB backslash=backslash60^(@)

In a circle of radius 5cm, AB and AC are two chords such that AB=AC=6cm* Find the length of the chord BC

AD is a diameter of a circle and AB is a chord. If AD = 34cm, AB = 30cm, the distance of AB form the centre of the circle is