Anyone that can help me ?

Stone mountain was formed during the formation of the blue ridge mountains around 300-350 million years ago and is considered part of the appalachian mountains. it formed as a result of the upwelling of magma from within the earth's crust. this upwelling, or solidified to form the that became stone mountain.

In the diagram below, ab and bc are tangent to o. what is the measure of

Following the new zealand wars, the british government