In a circle, chords and are equal. The angles they subtend at the centre are and…

MATHEMATICS · Single correct · CBSE · Mathematics · Circles · Circles

Problem

In a circle, chords

PQ

and

RS

are equal. The angles they subtend at the centre are

(2x + 10)^{\circ}

and

(5x - 50)^{\circ}

respectively. Find the value of

x

. (a) 15 (b) 20 (c) 18 (d) 30