Help with these 3 please! BIG POINTS!

Answer:
26. 14 sq.units
27. I think it's near to be 30
28. I think it is the first one
Answer:
use (pi*r^2)/2 to find the area of one semi circle, then multiply it by 2 to find the total of both semi circles
the diameter is 3, so the radius is 1.5
approx 7.06858347058
*2
=approx 14.1371669412
+6 (the rest of the blocks)
=20.1371669412
approx = 20.14 =20
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