Answer:
100 sq. m
Step-by-step explanation:
So, first, we need to know the formula for the area of a triangle.
A=BH/2
In this case, we know the base and the height (B and H respectively), and we just fill it out.
A=10*20/2
A=200/2
A=100.
Lastly, don't forget the units, so, A=100 sq. m
