Find the distance between A(5,12) and B on the x-axis whose obscissa is 10
Distance between two points (x1,y1) and (x2,y2) can be calculated using the formula √(x2−x1)2+(y2−y1)2
Distance between the points A(5,12) and B (10,0)=√(10−5)2+(0−12)2=√25+144=√169=13