Day 66: CBSE Class 10 Maths

1. A.
   $65^\circ$
2. B.
   $58.5^\circ$
3. C.
   $57.5^\circ$
4. D.
   $45^\circ$

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1. A.
   $2\pi$ cm
2. B.
   $4\pi$ cm
3. C.
   $5\pi$ cm
4. D.
   $6\pi$ cm

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1. A.
   $\dfrac{\pi r^2}{2} - \dfrac{1}{2}r^2$
2. B.
   $\dfrac{2\pi r}{4} - \dfrac{\sqrt{3}}{4}r^2$
3. C.
   $\dfrac{\pi r^2}{6} - \dfrac{\sqrt{3}}{4}r^2$
4. D.
   $\dfrac{2\pi r}{4} - r^2 \sin 60^\circ$

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