(a(i))[4]
Calculate the value of $XY$.
(a(ii))[3]
Calculate the value of $TZ$.
(b)[4]
Calculate the radius of the circle.
Mathematics 0580 · IGCSE · Non-right-angled triangles
Non-right-angled triangles — practice question
In triangle $TXZ$, the side $TX$ measures $12.5$ cm and angle $TZX$ is $37^\circ$. Point $Y$ lies on line $XZ$ so that $TY = 9.9$ cm, angle $XTY = 23^\circ$ and angle $TYZ = 72^\circ$.