Suppose the height of a triangle is tripled. How does this affect the area of the triangle? Explain

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?

The base of a triangle exceeds the height by 9 inches. if the area is 180 square inches, find the length of the base and the height of the triangle.

Labc is reflected across x = 1 and y = -3. what are the coordinates of the reflection image of a after both reflections?