The trapezoid formula is 1/2 (base 1+ base 2) x height. So if you work backwards you should be able to find the height. Could you give the base measurements?
A = 1/2(12)(5) - 1/2(4)(3)
A = 30 - 6
A = 24
answer
24 mm^2
Answer:
the answer is 40√3feet per second
Step-by-step explanation:
v=√16.√300
v= 4. 10√3
NB:10√3=√100 .√3=√100.3= √300
Hence v =40√3ft per second
The height will be four, becaus 5 is the height of the base not the whole prism. You can tell be beacause when you find the area of the base and multiply it by the height you multiply it by 4 not 5.