#### Answer

$A=14\text{m}^2$

#### Work Step by Step

To find the area of a triangle, we use the formula $A=\frac{bh}{2}$, where $b$ is the base of the triangle, and $h$ is the height of the triangle. Plugging in the values shown for $b$ and $h$, we get: $$A=\frac{bh}{2}=\frac{4\text{m}\times7\text{m}}{2}=\frac{28\text{m}^2}{2}=14\text{m}^2$$