Answer:
A = 344 cm²
Explanation:
we can calculate the area of the complete rectangle (outer) with sides 26 cm and 17 cm
then subtract the area of the inner white rectangle with sides 14 cm and 7 cm from the outer area to be left with the purple shaded area, that is
A = (26 × 17) - (14 × 7) = 442 - 98 = 344 cm²