18. In the figure, o is the center of the circle passing through P, Q, R and S. If angle SOQ = 150°, find the values of x and y.



18 In the figure o is the center of the circle passing through P Q R and S If angle SOQ 150 find the values of x and y class=

Respuesta :

Answer:

x = 75°

y = 105°

Step-by-step explanation:

Angle subtended on the circumference of the circle is half of the angle subtended on the center of the circle.

[tex] \therefore m\angle SRQ = \frac{1}{2} \times m\angle SOQ\\\\

\therefore x = \frac{1}{2} \times 150\degree \\\\

\red{\bold{\therefore x =75\degree}} \\[/tex]

Quadrilateral PQRS is a cyclic quadrilateral.

[tex] \therefore m\angle R + m\angle P= 180\degree \\\\

\therefore x + y = 180\degree \\\\

\therefore 75\degree + y = 180\degree \\\\

\therefore y = 180\degree - 75\degree \\\\

\purple {\bold {\therefore y = 105\degree}} \\[/tex]