Mathematics: What is the stander form of 1234567456

What is the stander form of 1234567456 - id12345674568994863, Fangflora3

Ответ:

cman8228

03.06.2021

Mathematics

See Explanation

Step-by-step explanation:

By inscribed angle theorem:

$m\angle BAD = \frac{1}{2} \times m\widehat {BD}\\</p<p\therefore 66° = \frac{1}{2} \times m\widehat {BD}\\</p<p\therefore 66° \times 2= m\widehat {BD}\\</p<p\purple {\bold {\therefore m\widehat {BD}= 132°}}$

Now,

$\because m \widehat {DAB} = 360° -m \widehat {BD}\\</p<p\therefore m \widehat {DAB} = 360° - 132°\\</p<p</p<p\huge \purple {\boxed {\therefore m \widehat {DAB} = 228°}}\\\\</p<p</p<p\because m\angle BCD = \frac{1}{2} (m \widehat {DAB}-m \widehat {BD}) \\</p<p\therefore m\angle BCD = \frac{1}{2}(228°- 132°)\\</p<p \therefore m\angle BCD = \frac{1}{2}\times 98°\\</p<p\huge \orange {\boxed { \therefore m\angle BCD =49°}}\\\\</p<p</p<p\because m\angle BCD = 180° - 66°\\</p<p\huge \pink {\boxed { \therefore m\angle BCD = 112°}} \\</p<p</p<p$

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What is the stander form of 1234567456

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