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Exercises 9.3: Circles and Arcs

WRITING

1.  $\widehat{\mathrm{MN}}$

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2.  $\widehat{\mathrm{EFD}}$

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3.  $m\widehat{\mathrm{ADB}}=360°-60°=300°$

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4.  $m\widehat{\mathrm{AB}}+m\widehat{\mathrm{ACB}}=360°$

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5.  $\widehat{\mathrm{LM}}\cong \widehat{\mathrm{XY}}$

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6.  $\widehat{\mathrm{ACB}}\text{is a major arc.}$

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7.  $\overline{\mathrm{AB}}\cong \widehat{\mathrm{BD}}$

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8.  $\frac{m\widehat{\mathrm{ST}}}{360}$

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9.  $\widehat{\mathrm{DE}}=135.01°$

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10.  $m\widehat{\mathrm{AC}}=m\angle \mathrm{ABC}=x^2$

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READING

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PROOFREADING

21.  $\widehat{\mathrm{GH}}$

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22.  $m\widehat{\mathrm{UV}}+m\widehat{\mathrm{XY}}$

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23.  $◯X$

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24.  $\widehat{\mathrm{PQ}}\cong \widehat{\mathrm{RS}}$

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25.  $\overline{\mathrm{AB}}\cong \widehat{\mathrm{BD}}$

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