please check my answer! find the area of the triangle. please check asap! thank you i need it done in 10min :(

Answer:
A = 21 in ^2
Step-by-step explanation:
The area of a triangle is
A = 1/2 bh where b is the length of the base and h is the height
b = (3+3) = 6 and height is 7
A = 1/2 6*7
A = 1/2 *42
A = 21 in ^2