Free points! ☆*: .｡. o(≧▽≦)o .｡.:*☆

Which geometric principle is used to justify the construction below?

What is the total surface area of the square pyramid

Jane is cooking beans and rice for dinner tonight. she has 4 cans of black beans, 6 cans of red beans, and 3 cans of garbanzo beans in her cupboard. if she grabs a can of beans without looking at the label, what is the probability of her making black beans and rice for dinner?