Find the mid - point of the line joining (5,8),(9,11)
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https://www.meritnation.com/ask-answer/question/the-coordinates-of-the-mid-point-of-the-line-joining-the-poi/some-applications-of-trigonometry/8720015
Follow the formula of calculating mid point
https://www.meritnation.com/ask-answer/question/the-coordinates-of-the-mid-point-of-the-line-joining-the-poi/some-applications-of-trigonometry/8720015
Follow the formula of calculating mid point