Calculate the area of the irregular polygon shown below: 21 square inches 22 square inches 26 square inches 29 square inches

26 Square Inches. 
If you find the area of the two missing fragments, which are 3 in. by 4 in., you can make the equation 2(3 x 4)= 24. Find the area of the whole 5 in. by 10 in. which is equal to 50 in. Subtract 24 from 50 and you get 26.

Here is your

Here is the formula for area:

For a rectangle it is...

Area=length×width

For a circle its

Area=π×r^2

This following shape represents a rectangle so put the numbers in the equation:

3×4×3×4

Which rounded to equal

26 squared inches

Your answer is C.

Hope this helps.