Answer:
so its D
Step-by-step explanation:
a is wrong becuase it does have 6
b is wrong becuase you make into 6 triangles
c is wrong becuase it does add up to 180 degrees
The first one I think not sure
Math can help you when you go to a store and buy stuff. Like when you go to the store when you're older and giving in money for what your buying. Or seeing if you have enough money to buy stuff. Hope it helps :)