Question and Answers Forum

All Questions      Topic List

Arithmetic Questions

Previous in All Question      Next in All Question      

Previous in Arithmetic      Next in Arithmetic      

Question Number 154065 by peter frank last updated on 13/Sep/21

Answered by Rasheed.Sindhi last updated on 14/Sep/21

Area of the badge=Two semi-circles                                         +One rectangle  2(((πx^2 )/2))+xy=20  πx^2 +xy=20  y=((20−πx^2 )/x)  Perimeter=Two semi-circles                                 +2lengths+2widths  p=2πx+2y+2x     =2πx+2(((20−πx^2 )/x))+2x     =((2πx^2 +40−2πx^2 +2x^2 )/x)     =2x+((40)/x)

$${Area}\:{of}\:{the}\:{badge}={Two}\:{semi}-{circles} \\ $$$$\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:+{One}\:{rectangle} \\ $$$$\mathrm{2}\left(\frac{\pi{x}^{\mathrm{2}} }{\mathrm{2}}\right)+{xy}=\mathrm{20} \\ $$$$\pi{x}^{\mathrm{2}} +{xy}=\mathrm{20} \\ $$$${y}=\frac{\mathrm{20}−\pi{x}^{\mathrm{2}} }{{x}} \\ $$$${Perimeter}={Two}\:{semi}-{circles} \\ $$$$\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:+\mathrm{2}{lengths}+\mathrm{2}{widths} \\ $$$${p}=\mathrm{2}\pi{x}+\mathrm{2}{y}+\mathrm{2}{x} \\ $$$$\:\:\:=\mathrm{2}\pi{x}+\mathrm{2}\left(\frac{\mathrm{20}−\pi{x}^{\mathrm{2}} }{{x}}\right)+\mathrm{2}{x} \\ $$$$\:\:\:=\frac{\cancel{\mathrm{2}\pi{x}^{\mathrm{2}} }+\mathrm{40}−\cancel{\mathrm{2}\pi{x}^{\mathrm{2}} }+\mathrm{2}{x}^{\mathrm{2}} }{{x}} \\ $$$$\:\:\:=\mathrm{2}{x}+\frac{\mathrm{40}}{{x}} \\ $$

Commented by peter frank last updated on 14/Sep/21

thank you

$$\mathrm{thank}\:\mathrm{you} \\ $$

Terms of Service

Privacy Policy

Contact: info@tinkutara.com