Answer:
255 square centimeters
Step-by-step explanation:
First, break this into two shapes: a triangle and a rectangle.
The rectangle is 22 cm by 10 cm. [tex]22 * 10 = 220[/tex] square centimeters
The triangle's base is 10 cm ([tex]22-12=10[/tex]) and its height is 7 cm ([tex]17-10=7[/tex]). [tex]\frac{1}{2} * 10 * 7 = 5 * 7 = 35[/tex] square centimeters
Add the areas together. [tex]220 + 35 = 255[/tex] square centimeters
