A notch is cut out of a vertical cylindrical log of radius r cm by two planar saw cuts that meet along a horizontal line passing through the centre of the log. If the saw cuts make angles ± 30º with the horizontal (so that the angle of the notch is 60º), find the volume of wood cut out of the log in making the notch. A) cm ³ B) cm³ C) cm³ D) cm³ E) cm³

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The Answer of A notch is cut out of a vertical cylindrical log of radius r cm by two planar saw cuts that meet along a horizontal line passing through the centre of the log. If the saw cuts make angles ± 30º with the horizontal (so that the angle of the notch is 60º), find the volume of wood cut out of the log in making the notch. A) cm ³ B) cm³ C) cm³ D) cm³ E) cm³

A Notch Is Cut Out of a Vertical Cylindrical Log