Answer:
52.5
Step-by-step explanation:
I would say the last one is B, because of you use a calculator you will see that the equation adds up to B. Also if you have any trouble with your math download the app Photomath. It changed my life! Hope this helps
Lateral sides consiste of 4 congruentisosceles triangle
lateral area
= 4 * 0.5 * 11.2 * 20
= 448 cm^2