Send a message to the person who requested a photo of the grave monument of Edith Gibbs with the following comment:
Draw a suitable rough fiurge and mark the centre of one circle as C and the other as OThen mark a point K on the line PQ extended.Let the tangent to the circle with centre C be KLThe tangent to the circle with centre O be KMThen KQ x KP = KL^2----(1)And KQ x KP = KM^2 (2)From (1) and (2)KL^2 = KM^2So KL=KMHence prooved.