Dan is helping to build a stage for a concert. 4 m

3 m

3 m

3.5 m

12 m

Calculate the area of the stage.

Given that δabc is similar to δdef, which is a possible trigonometric ratio for ∠d? a) tan d = 24 30 b) tan d = 30 24 c) tan d = 18 24 d) tan d = 24 18