Question

Consider the following figure:

What solid 3D object is produced by rotating the triangle about line m?

Choose 1 answer:

A) A cylinder with radius 8 units

B) A cylinder with diameter 6 units

C) A cone with radius 8 units

D) A cone with radius 6 units

Answer 1

cone w/ radius of 8. I got it wrong before, and this is what I eventually fixed it to. (if you rotate a triangle it makes a cone. the 8 thing was new to me but it's the answer.)

Step-by-step explanation:

Answer 2

C(cone with a radius of 8 units)

Step-by-step explanation:

When a triangle is spun around its center, it makes a cone (can't make a cylinder because when spun, it doesn't have 2 circular bases). The radius would be 8 because that is what makes the circular base. The 6 is just the height of the triangle and cone once it is spun, it doesn't have anything to do with the base and its radius.