Answer:

Step-by-step explanation:

Answer:
do length times width times height and see what you get if your answer is not on there split the figure into 2 shapes and do l*w*h to both and add you 2 figures together then see if you have your answer.
Step-by-step explanation:
do length times width times height and see what you get if your answer is not on there split the figure into 2 shapes and do l*w*h to both and add you 2 figures together then see if you have your answer. hope that helps!
I believe C is correct,
Also, did you finish the equation for letter D?
Traditional 1/2 * base * height
Heron’s formula (it’s quite lengthy so search it up)
Hope this helped you :)
X = k x y
21 = k x 3
k = 7
x = 7y
x = 7(10)
x = 70