(vii) In the given figure, A, B and C are three points on a circle. The tangent at C meetsBA produced at T. The measure of the angle subtended by AB at the centre is:(a) 480(b) 840(c) 960(d) 1320480360BTCA

Three points A,B and C lie on the circle such that AB is the diameter of the circle. Find the angle measure of C.Choices:- 120 deg 270 deg 90 deg 25 deg

Point O is the centre of the circle shown. Line segment AB is 20 units long, line segment CF is 4 units long, and line segment ED is 3 units long. Segments AC, AD, and CD are tangent to the circle at points B, E, and F, respectively. The perimeter of ΔACD isa27 units b50 unitsc51 units d54 units

and AC are tangents to the circle, centre O. AO is a straight line passing through BC at D. If AO 10.8 cm and OC = 4.3 cm find B a). AC, b). AB, D A c). ∠BAO, d). ∠AOB, e). OD, f). BD, g). ZOBD, h). ∠DBA.

Q72. The angle subtended by an arc at the center of a circle is 135". The angle subtended by the same arc at any point on the remaining part of the circle is Ops: A 120 B. 30° C.90 D. 67.5

In the given figure, AB is one such tangent to a circle of radius 75 cm.Point O is the centre of thecircle and ∠ABO = 30⁰. PQ is parallel to OA.Based on the above information answer the following questions:I Find the length of AB. 1mII Find the length of OB. 1mIII (a)Find the length of AP.OR(b)Find the length of PQ