In the diagram, O is the center of the circle QRS and&nbs...
In the diagram, O is the center of the circle QRS and ∠SQR = 28°. Find ∠ORS.
560
280
760
620
Correct answer is D
∠SOR = 2 × 28° = 56° (angle at the centre is twice the angle at the circumference)
From ∆SOR
|OS| = |OR| (radii)
So, ∆SOR is isosceles.
∠ORS = 1800−5602=12402 ( base angles of isosceles triangle are equal)
∴ ∠ORS = 62°
Similar Questions
If 6, P, and 14 are consecutive terms in an Arithmetic Progression (AP), find the value of P. ...
In the diagram, |SR| = |RQ| and ∠PRQ = 58o ∠VQT = 19o, PQT, SQV and PSR are straight lines. Find...
If cos (x + 25)o = sin 45o, find the value of x...
The ages of students in a small primary school were recorded in the table below. Age&nb...
An arc of length 22cm subtends an angle of θ at the center of the circle. What is the value of...
The mean of 2-t, 4+t, 3-2t, 2+t and t-1 is ...
Express (0.0425 / 2.5) as a fraction ...
Four boys and ten girls can cut a field first in 5 hours. If the boys work at 54 the ra...