Apen is being built that is 10 feet long and 20 feet wide. how much fencing material will be needed?

Which geometric principle is used to justify the construction below?

How many heads would you expect if you flipped a coin twice? first, fill in the table below with the correct probabilities. hint: the sample space for flipping a coin twice is {hh, ht, th, tt}. a = b = c = f

Solve for x and select the correct answer