The length AB and OB will be 5 units and 8 units. The length is obtained with the help of the coordinate points.
What is circle?
A circle is a form made up of all points on a plane that are at the same distance from one another.
The length of the OB and AB is found by the coordinates;
O(5,4)
A(-3,9)
B(-3,4)
The length of AB is found as;
AB is parallel to the y-axis;
AB= 9-4
AB= 5 units
The length of OB is found as;
AB is parallel to the x-axis;
OB=5-(-3)
OB= 8 units
To learn more about circle refer;
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