Find the area of the trapezoid by decomposing it into other shapes.
a) 25 cm2
b) 27 cm2
c) 30 cm2
d) 35 cm2

(sorry couldn't get a picture)

Is this the pic??

Step-by-step explanation:

the easiest way to do these would be to solve the equations. if you can solve the equation than you can solve these problems.

the diagram shows you   triangle def with de=4, df=9 and de≠df≠ef.

the sum of the lengths of two triangles' sides are always greater than the length of the third side:

substitute sides lengths:

then 5< ef< 13 (option 3 is true).

def is a scalene triangle with all sides of different lengths (option 5 is true, option 2 is false).

answer: correct choices are 1, 3 and 5