Mathematics: In an equilateral triangle abc of side 2a,ad perpendicular to bc,then find the length of ad.

In an equilateral triangle abc of side 2a,ad perpendicular

AM28

13.01.2022

$AD=\sqrt{3} \ a$

Step-by-step explanation:

AD is perpendicular on BC.

BD=CD=a (as D is the mid point of BC)

Now in the triangle ABD

$AB^{2} =BD^{2} +AD^{2} \ \ \ \ (using \ Pythagorean \ Theorem)\\AD^2=AB^2-BD^2\\AD^2=(2a)^{2} -a^2\\AD^2=3a^2\\AD=a\sqrt{3}$

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saadshami2384

02.07.2022

okay dominic weird way of spelling the answer is 88172281837873817392464647267816

Step-by-step explanation:

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