Explore Westonci.ca, the leading Q&A site where experts provide accurate and helpful answers to all your questions. Get precise and detailed answers to your questions from a knowledgeable community of experts on our Q&A platform. Connect with a community of professionals ready to provide precise solutions to your questions quickly and accurately.

please help me!!!!..

Please Help Me class=

Sagot :

The answer is B. 20^2 - 12^2 = a^2, as you would use a^2 + b^2 = c^2 and use 20 for c and 12 for b. Then you would subtract b from each side to isolate a, ending up with 20^2 - 12^2 = a^2.