Answer:
132 square feet
Step-by-step explanation:
a+b/2*h
20+24/2*6=132
So first of all you count all the blocks, so it will be 16 blocks (4x4) sideways and horizontal.
A = 16/4 marked blocks = 25%
B = 16/8 marked blocks = 50%
C = 16/6 marked blocks = ?
D = 16/10 marked blocks = 62,5%
<em>So answer would be A </em>
The first dove terms are:3,9,12,15,18