Imagine a triangle with a base of $$15 \ cm$$ and a height of $$12 \ cm$$. Calculate the area.
See development and solution
Development:
The area of the triangle is: $$$A=\dfrac{b\cdot h}{2}=\dfrac{15\cdot12}{2}=90 \ cm^2$$$
Solution:
$$A=90 \ cm^2$$