What is the area of this irregular figure?
A. 90
B. 180
C. 540
D. 1,080

the answer is B 180

Step-by-step explanation:

if you take the triangle from the bottom and put it on the top where the missing chunk is you would get a 12 by 15 rectangle Wich would give you 180

B. 180

Detailed working and explanation

Divide the irregular figure into 2. You should have a rectangle and a parallelogram.

Total area of irregular figure

=Area of parallelogram+Area of Rectangle

Where Area of parallelogram=bh

area of Rectangle=lw

=(12×*(15-6))+(12×6)

=(12×9)+72

=180mm²

*Note how the parallelograms height was calculated