Mathematics
Two chords AB and CD of a circle intersect externally at a point P. If PC = 15 cm, CD = 7 cm and AP = 12 cm, then AB is
2 cm
4 cm
6 cm
none of these
Related Questions
In the adjoining figure, if sides PQ, QR, RS and SP of a quadrilateral PQRS touch a circle at points A, B, C and D respectively, then PD + BQ is equal to
PQ
QR
PS
SR
In the adjoining figure, PQR is a tangent at Q to a circle. If AB is a chord parallel to PR and ∠BQR = 70°, then ∠AQB is equal to
20°
40°
35°
45°
In a circle with radius R, the shortest distance between two parallel tangents is equal to :
R
2R
2πR
πR
In the given diagram, PS and PT are the tangents to the circle. SQ || PT and ∠SPT = 80°. The value of ∠QST is :
140°
90°
80°
50°
