C. 315 units^2
Explanation:
The formula for the area of a triangle is:
In this case, the base (b) will be 30 and the height (h) will be 21.
We can plug these numbers in the equation and make the 1/2 a .5.
A = 315
~
315 units^2
D.630
i did the math and got that
4.5m questions
5.7m answers