9514 1404 393
Answer:
64.5 square inches
Explanation:
The area of each of the two triangles can be found from the formula ...
A = (1/2)bh
left triangle
A = (1/2)(9.8 in)(8.6 in) = 42.14 in²
right triangle
A = (1/2)(5.2 in)(8.6 in) = 22.36 in²
Total shaded area is the sum of the areas of the two triangles:
(42.14 +22.36) in² = 64.5 in²