Question and Answers Forum

All Questions      Topic List

Geometry Questions

Previous in All Question      Next in All Question      

Previous in Geometry      Next in Geometry      

Question Number 211323 by mr W last updated on 06/Sep/24

Commented by mr W last updated on 06/Sep/24

$$bothcirclesareconcentric.$$$$find\mathrm{\angle }C=?$$

Answered by liuxinnan last updated on 06/Sep/24

$$\frac{1}{2}\mathrm{\angle }DCA=\mathrm{\angle }OCA=\mathrm{\angle }OAC=\frac{1}{2}\mathrm{\angle }DAC=\frac{o}{2}$$$$\mathrm{\angle }B=\pi -\mathrm{\angle }BAC-\mathrm{\angle }DCA=\pi -3o$$

Commented by liuxinnan last updated on 06/Sep/24

Commented by mr W last updated on 06/Sep/24

$$inthefigure‘‘o^{″}isjustasymbol$$$$indicatingthatthetworedangles$$$$areequal.‘‘o^{″}isnotagivenvalue.$$

Commented by liuxinnan last updated on 06/Sep/24

Commented by mr W last updated on 06/Sep/24

��

Answered by mr W last updated on 06/Sep/24

Commented by mr W last updated on 06/Sep/24

$$10\alpha =180°\Rightarrow \alpha =18°$$$$\Rightarrow \mathrm{\angle }C=36°,\mathrm{\angle }B=72°$$

Terms of Service

Privacy Policy

Contact: info@tinkutara.com