If this is an equilateral triangle, we need half of it to find the height which is a leg of a right triangle with a hypotenuse of 15. That means that the base of this half triangle is 7.5. Use Pythagorean's Theorem to fine the height. 
. x = 12.99 or 13
HELP Would i times them
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Equations for the acceleration:
Step-by-step explanation:
The acceleration of a body is the rate of change in velocity of the body; it is given by
where
v is the final velocity
u is the initial velocity
t is the time taken for the velocity to change from u to v
The equation can be also written as
Therefore, these two equations can be used to find the acceleration.
Learn more about acceleration:
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