In the diagram above, O is the centre of a circle NST. |NT| = |ST| and ∠NTS = 36°. Find the measure of the angle marked t.

a. In the diagram above P, Q, R, and S are points on the circle with centre O.
QR // OS , ∠QOR = 2m, ∠QPR = n and ∠SOR = 54°. Find the values of m and n.

b. The length of a rectangle is 4 cm more than the width. If the perimeter is 40 cm, find the area.

Find the angle subtended by an arc 33cm long of a circle of diameter 28cm.

From the figure above, find the length of Chord PQ

PQR is a triangle such that |PQ| = |QR| = 8cm and QPR = 60º. Find the area of \(\angle\) PQR