Find measures using rigid transformations. need

How many bananas are in a fruit bowl that has 200 total apples and bananas if there are 31 bananas for every 93 apples

Astick 2 m long is placed vertically at point b. the top of the stick is in line with the top of a tree as seen from point a, which is 3 m from the stick and 30 m from the tree. how tall is the tree?

How can you find the magnitude of a vector, v = < x, y > , where the horizontal change is x and the vertical change is y?