What is the height of an equilateral triangle with sides that are 12 cm long? round to the nearest tenth. (1 point)

10.4 cm

Step-by-step explanation:

Looking at the triangle in the attached pic, we can see that the right, smaller triangle is a right triangle on which we can apply the pythagorean theorem to solve for the height, h.

Pythagorean theorem tells us where c is the hypotenuse (12 in our case) and a & b are the two legs (6 and h are the respective lengths).

So let's solve for h:

final answer is : )