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The 3D graphic below shows a selection of personal care products in geometrical form - Leaving Cert DCG - Question A-4 - 2021
Question A-4
The 3D graphic below shows a selection of personal care products in geometrical form. The objects rest on a dressing table and are in contact as shown. The arrangeme... show full transcript
Worked Solution & Example Answer:The 3D graphic below shows a selection of personal care products in geometrical form - Leaving Cert DCG - Question A-4 - 2021
Step 1
(a) Draw the elevation of the cylinder B.
Answer
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Projection from Centre in Plan: Begin by projecting the center of the cylinder B from the plan view onto the elevation view. The cylinder has a circular base, so ensure that the radius is noted from the plan.
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Locate Centre in Elevation: Mark the center point of the cylinder B in the elevation view. Use the radius determined in the previous step to establish the outer boundary of the cylinder.
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Draw Elevation of Cylinder: Draw the elevation by completing the circular outline of cylinder B at the correct height. The height of the cylinder should correspond to the height visible in the 3D graphic.
Step 2
(b) Draw the plan of the hemisphere C.
Answer
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Projection from Centre of Hemisphere in Elevation: Project the center point of the hemisphere from the elevation view down to the plan view.
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Locate Centre in Plan: Mark the center point for hemisphere C in the plan view based on the projections made earlier.
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Draw Hemisphere C: Draw the outline of hemisphere C in plan, ensuring that it depicts a semicircle with the diameter equal to the diameter seen in the elevation. Position the semicircle so that it aligns correctly with the center point established in the previous step.