Thank you for the opportunity to help you with your question!

BE CAREFULL THE CORRECT ANSWER IS 132.73 CM^2 WHICH IF YOU CONVERT IN INCHES IS 20.56 IN^2 THERE IS A MISTAKE HERE . I SUPPOSE THEY MEANT CM^2 AND THE ANSWER IS A ! BUT YOU NEED TO CLARIFY

Please let me know if you need any clarification. I'm always happy to answer your questions.