Find X: Triangle with Area 15 and Base 3

To solve for $x$, let's apply the standard formula for the area of a triangle:

• Given that the area $A = 15$, base $b = 3$, and height $h = x$.

The area formula is:

$A = \frac{1}{2} \times b \times h$

Substituting the given values into the equation, we have:

$15 = \frac{1}{2} \times 3 \times x$

Now, simplify and solve for $x$:

$15 = \frac{3}{2} \times x$

Multiply both sides by $\frac{2}{3}$ to isolate $x$:

$x = 15 \times \frac{2}{3}$

Calculating, we obtain:

$x = \frac{30}{3} = 10$

Thus, the height $x$ of the triangle is $x = 10$.

Therefore, the solution to the problem is $x = 10$.