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°
Find the value of X if cosx=58 for 0o≤X≤180o...
if P and Q are fixed points and X is a point which moves so that XP = XQ, the locus of X is ...
If x% of 240 equals 12, find x ...
When a number is subtracted from 2, the result equals 4 less than one-fifth of the number. Find...
Evaluate 81.81+99.4420.09+36.16 correct to 3 significant figures. ...
Find the median of the following set of scores: 65, 72, 55, 48, 78 ...