I need help with this 1 question and also can you explain to me how you do it

Answer:
6 sq. cm
Step-by-step explanation:
The area of a triangle is 1/2 * b * h, where b is the base and h is the height. In this case, b is 3 and h is 4, so the area is 1/2 * 3 * 4 = 6 sq. cm
Hope this helps!