<span>So, you have all three angles of the triangle and you want to find the arc across from angle R. Since the\angles of a triangle total 180 degrees, each arc is twice the measure of the angle across from it on the other side. that being said, triangle ARC with an angle of 70 means its isosceles so it would have 2 angles at 70 degrees leaving an angle at 40 and since an arc is 2x an angle arc AC should be 80
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Answer:
Timbuktu
Explanation:
The Niger River is one of the largest rivers in Africa by all parameters. The river starts in the Guinea Highlands, moves toward northeast, makes a turn, moves toward southeast, and then to the south, ending its flow t the southern coast of Nigeria, giving this river a half circular appearance. The furthest north this river gets is in its middle flow, with the largest settlement that is close to the northernmost point of this river being Timbuktu. The Niger River has always been crucial for the people of the region, and still is in the present, being by far the most important water body in Western Africa.
