Question

What is the area of the triangle?

Answer 1

Answer:

$10\:\mathrm{units^2}$

Step-by-step explanation:

The area of a triangle can be given as $\frac{1}{2}\cdot b \cdot h$. Notice that a base of the triangle is given as 4 units, and the height is marked as 5 units. We know that the segment marked as 5 units is the height of the triangle because it forms a $90^{\circ}$ with the segment marked as 4 units and meets a vertex of the triangle.

Therefore, the area of the triangle is:

$\frac{1}{2}\cdot 4 \cdot 5 = \fbox{ 10 }$.