75o
37\(\frac{1}{2}\)o
127\(\frac{1}{2}\)o
105o
Correct answer is D
PSO = 90o(angle in a semicircle)
SPO = 180o - (90o + 15o) = 75o
< QRS = 108o - 75o
= 105o(opposite angles in cyclic quadrilateral are supplementary)
In a triangle XYZ, if < ZYZ is 60, XY = 3cm and YZ = 4cm, calculate the length of the sides XZ. ...
If f(x) = 2(x - 3)\(^2\) + 3(x - 3) + 4 and g(y) = \(\sqrt{5 + y}\), find g [f(3)] and f[g(4)]....
The 4th term of a G.P is 3 and its first term is 81. What is its common ratio? ...
In the diagram, △XYZ is produced to T. if |XY| = |ZY| and ∠XYT = 40°, find ...
Evaluate \(\frac{(05652)^2 - (04375)^2}{0.04}\) correct to three significant figures ...
Given that m = -3 and n = 2 find the value of \(\frac{3n^2 - 2m^3}{m}\)...
Express \((0.0439 \div 3.62)\) as a fraction....
If tan x = \(\frac{3}{4}\), 0 < x < 90\(^o\), evaluate \(\frac{\cos x}{2 sin x}\) ...
Find the two values of y which satisfy the simultaneous equation 3x + y = 8, x\(^2\) + xy = 6....