Question

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Answer 1

Ok, part a). This is a right angled triangle so you can calculate the length OT.

Answer 2

You know OQ = 5 cm, hence you now also know QT. The only question that remains is what is the arc length PQ. Well, that will be equal to the angle POQ times the radius.

So far so good?

Answer 3

um fine with OT and qt wats the angle POQ?

Answer 4

it's a right angled triangle and you know the side lengths. Calculate the sin, cos or tan of that angle.

Answer 5

oh gosh thanks

Answer 6

make sure you use radians of course

Answer 7

yeah u the boss :)