Question

tangents of a circle help please?

Answer 1

are u sure that is the right pic? The question mentioned K, P & Q and they are not shown on the pic...

Answer 2

sorry about posting the wrong picture

Answer 3

No prob :) OK look at <ABP plz....since BP is a tangent and AB is radius, the angle ABP should be equal to....?

Answer 4

my book says it is 57.5 but i dont understand how they got it

Answer 5

A few things will help u solve this prob....first look at triangle ACD...AC=AD so <CDA=<DCA...also <CDA + <DCA + <CAD = 180

<CAD=<BAP in triangle BAP and of course <BAP + <ABP +<APB = 180.

Above should be enough info for u to calculate the ans to be 57.5. Post back if u run into any trouble :)