Question

what is the area of this triangle? 5? 3 4

Explanation:

Step1: Identify triangle type

The triangle has a right angle (since base and height are perpendicular), so it's a right - triangle. For a right - triangle, the area formula is $A=\frac{1}{2}\times base\times height$.

Step2: Determine base and height

From the diagram, the base ($b$) is 3 and the height ($h$) is 4.

Step3: Calculate the area

Substitute $b = 3$ and $h=4$ into the formula $A=\frac{1}{2}\times b\times h$. So $A=\frac{1}{2}\times3\times4$. First, calculate $3\times4 = 12$, then $\frac{1}{2}\times12=6$.

Answer:

The area of the triangle is 6.