Answer: the answer is 1679616
I know your answer your answer will be 683.65 Hope this helped :)
133.875
This is the answer because we are given the length and the width of this floor. We are assuming it is a regular rectangle.
So we just multiply the length and the width which is 12.74 x 10.5, which comes out to 133.875
The angle measurements of a triangle add up to be 180
Q+R+S=180
Q+(60)+(20)=180
Q+80=180
Q=100
your answer is B. 100