Smith cut his peanut butter

sandwich across the diagonal. That

cut is 12 cm long, and the bread

slice is 6.5 cm wide. How tall is

the piece of bread?

The answer is the square root of 101.75

Assuming that the sandwich Is a square, after cutting it diagonally, it turns into 2 triangles. To look for a missing length of a triangle, you use Pythagorean's theorem a^2+b^2=c^2

Since c is 12 and a is 6.5 you just square 12 and square 6.5

144 42.25

Subtract it

101.75

You then have to find the square root of it. You can leave it as it is as √101.75 or just solve for it and round it to 10.09