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.

$h^2=100-25=75$
$h=\sqrt{75}=5\sqrt3$
Answer:
No, Kareem is incorrect.
Step-by-step explanation:
Kareem says that the ratio of
because 4 + 8 = 12 and 1 + 8 = 9
But the correct way to rewrite the ratio 4 : 1 is,

Which becomes as,

Therefore, Kareem is not correct.
Correct ratio equivalent to 4 : 1 is 12 : 3.
All real numbers is the awnser