Question

In the given figure, PQ is a diameter of a circle with centre 0 and PT is a tangent at P. QT meets the circle at R. If angle POR = 72 degree , find angle PTR.​

Answer 1

Answer:

Ajay walked at an average speed of 8km/hr. For 45mint and then run at 12km/hr. For 40mint. What was his average speed for the whole journey