state gov DDA Junior Secretariat Assistant (JSA) Mock Test 2023 Quantitative Aptitude Geometry Circles, Chords and Tangents
The chord of an arc of a circle is of length x, the height of the arc is y and the radius of the circle is z. Which one of the following is correct?
1
y(2z - y) = x2
2
y(2z - y) = 4x2
3
2y(2z - y) = x2
4
4y(2z - y) = x2