The length of AB is 7.2 units, so option D is correct.
What is addition?
The addition is one of the mathematical operations. The addition of two numbers results in the total amount of the combined value.
It is given that,
OC is perpendicular to AB. The length of Ac is 3.6 unit then we need to find the length of AB.
So,
We can see from the figure that
AB = AC + CB
Also AC = CB = 3.6
Thus, AB = 3.6 + 3.6 = 7.2 unit
Hence, the length of AB is 7.2 units, so option D is correct.
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