а₄=Р/4=48/4=12
по т.Пифагора R=√(6²+6²)=√72=6√2
а₅=2R sin(180/5)=2·6√2·sin(36⁰)≈9,975
Copyright © 2024 SCHOLAR.TIPS - All rights reserved.
Answers & Comments
Verified answer
а₄=Р/4=48/4=12
по т.Пифагора R=√(6²+6²)=√72=6√2
а₅=2R sin(180/5)=2·6√2·sin(36⁰)≈9,975