favre22fs
12.08.2020 •
Mathematics
ABC is an eqilateral triangle with sides 10cm find the length of the prependicular from A to BC
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Ответ:
All sides are equal in an equilateral triangle and the perpendicular bisects the side too.
so BC will be bisected and the segments be 5 each.
you can use Pythagoras theorem to find the altitude length, hypotenuse will be one side of the triangle.
$h^2=100-25=75$
$h=\sqrt{75}=5\sqrt3$
Ответ:
i cant explain it right now i have work to do so sorry:)