In the diagram, POQ is the diameter of the circle centre ...
In the diagram, POQ is the diameter of the circle centre O. Calculate ∠QRS
35o
70o
100o
125o
Correct answer is A
∠PSQ = 90° (angle in a semi-circle)
(when SR is joined to SP)
∠SPQ = 180 – (90+35) = 180 – 125 = 55°
∠QRS + ∠SPQ = 180° (opposite angles in a cyclic quad is supplementary)
∠QRS = 180° - 55°
= 125°
Similar Questions
The ages of students in a small primary school were recorded in the table below. Age&nb...
Which of the following is not true? You may construct a ...
What is the circumference of latitude 0°S if R is the radius of the earth?...
Suppose x varies inversely as y, y varies directly as the square of t and x = 1, when t = 3. Fi...
If the surface area of a sphere increased by 44%, find the percentage increase in diameter ...