Answer:
GCF would be 10
Step-by-step explanation:
GCF, aka <em>the greatest common factor</em> is the biggest number that can be multiplied to get that number. for example, in this situation it would be 1- because 10 can be multiplied to get any of those numbers. 1 x 10 = 10 ; 2 x 10 =20 ; 4 x 10 = 40. hope this helped!!
Answer:
D
Step-by-step explanation:

If I’m correct the right answer should be A. 1,680) If I’m wrong plz let me know
Answer:
D) triangle
Step-by-step explanation:
The attached image may be helpful to visualizing what the cross section looks like. It is a triangle.