# A triangular sail has a base length of 2.5 meters. The area of the sail is 3.75 square meters. How tall is the sail?

Apr 16, 2018

The sail is 3 meters tall.

#### Explanation:

The following formulas is used to find the area of a triangle.

$A = \frac{1}{2} \cdot B \cdot W$

B is the length of the base of the triangle.
H is the length of the height.

In this problem, we are giving A and B. We are looking for H. All we need to do is plug in the values that we have.

$3.75 = \frac{1}{2} \cdot 2.5 \cdot H$

Next, we can simplify a little.

$3.75 = 1.25 \cdot H$

Finally, we simply isolate the variable H by moving all numbers to the other side.

$\frac{3.75}{1.25} = H$

$3 = H$