Ответ:
S(∆ABC)=84 см²
Объяснение:
S(∆ABK)=S(∆ABC)*cos60°;
cos60°=½.
S(∆ABC)*½=42
S(∆ABC)=42*2
Copyright © 2025 SCHOLAR.TIPS - All rights reserved.
Answers & Comments
Ответ:
S(∆ABC)=84 см²
Объяснение:
S(∆ABK)=S(∆ABC)*cos60°;
cos60°=½.
S(∆ABC)*½=42
S(∆ABC)=42*2
S(∆ABC)=84 см²