Math, asked by krishnapriyaaa, 1 year ago

Solve Qn 17 second part

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Answers

Answered by Anonymous
1
Refer the attached picture.
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Answered by lijibinoydxb123
1

Answer:


Step-by-step explanation:

CM² = AC² + AM²

       =AC² + [BC/2]²

       =AC² + BC²/4

       =4AC² + BC²/4

 4CM² = 4AC² + BC² ...................eqn1

BL² = AB² + AL²

      = AB² + [AC/2]²

      = AB² + AC²/4

      = 4AB² + AC²/4

4BL² = 4AB² + AC² ....................eqn2

Adding eqn 1and2; we get,

                   4CM² + 4BL² = 4AC² + 4AB² + AC² + BC²

                                          = 4[AC² + AB²] + BC²

                                          = 4BC² + BC²

               4[CM² + BL²] = 5BC²

I hope it may help you!

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