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SUBJECT-MATHEMATICS, CLASS-IX, CIRCLES, , WORKSHEET(BASIC), VeryShortAnswer Type(1mark), , 1.What is the longest chord of a circle?, , 2.What is the length of the chord of a circle of radius 10cm if the perpendicular distance, between the centre and the chord is 6cm?, , 3.How many circles can be drawn through any three non collinear points?, , 4.The measure of the angle subtended by the diameter of a circle in, the circle is------------ :, , 5.In figure, if ZABC = 20°, then ZAOC is equal to, a)20° (b) 40° (c) 60° = (d)10°, , 6.The line perpendicular to two parallel chords may passes through the centre.(T/F), Give reason., 7.The sum of the measures of the exterior angles of a cyclic quadrilateral is ------ ., , 8.In a circle two chords AB and AC are present at distance of 3cm and 4.5cm from the, centre respectively.Which chord has greater length?, , 9. In a circle PQ is the diameter.R is a point on the circle such that PR=QR., What is the measure of 7 PQR?, , 10.In a circle ,if the length of a chord is equal to it's radius,what is the measure of the, angle subtended by the chord at the centre?