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A cylinder with diameter $\\var{2c}$cm and length $\\var{a+5}$cm.

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Surface area: [[0]] cm$^2$

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Volume: [[1]] cm$^3$

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Note that the question gives you the diameter not the radius.

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Make sure that you enter the correct calculation into your calculator.

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Finding surface area and volume, given formulae.

"}, "ungrouped_variables": ["a", "c", "b", "d", "l", "hyp", "r"], "variables": {"d": {"name": "d", "group": "Ungrouped variables", "definition": "random(5..12 #0.1)", "templateType": "anything", "description": ""}, "r": {"name": "r", "group": "Ungrouped variables", "definition": "(d-1.1)/2", "templateType": "anything", "description": ""}, "c": {"name": "c", "group": "Ungrouped variables", "definition": "random(b+1..10 except a)", "templateType": "anything", "description": ""}, "a": {"name": "a", "group": "Ungrouped variables", "definition": "random(b+1..10)", "templateType": "anything", "description": ""}, "hyp": {"name": "hyp", "group": "Ungrouped variables", "definition": "sqrt((b+2)^2+(c-1)^2)", "templateType": "anything", "description": ""}, "l": {"name": "l", "group": "Ungrouped variables", "definition": "sqrt((2b+8)^2+r^2)", "templateType": "anything", "description": ""}, "b": {"name": "b", "group": "Ungrouped variables", "definition": "random(1..6)", "templateType": "anything", "description": ""}}, "question_groups": [{"pickQuestions": 0, "questions": [], "pickingStrategy": "all-ordered", "name": ""}], "statement": "

If $r$ is the radius of the circular end, and $h$ the height (or length) of a solid cylinder then the formulae for the volume, $V$, and surface area, $S$, are:

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$V=\\pi r^2h$

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$S= 2 \\pi r^2 + 2 \\pi rh$.

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Calculate the volume and surface area of the solid cylinder shown below.

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Give your answers correct to 2 decimal places.

", "extensions": [], "contributors": [{"name": "Kwame D Dwamena", "profile_url": "https://numbas.mathcentre.ac.uk/accounts/profile/81/"}, {"name": "Clare Lundon", "profile_url": "https://numbas.mathcentre.ac.uk/accounts/profile/492/"}]}]}], "contributors": [{"name": "Kwame D Dwamena", "profile_url": "https://numbas.mathcentre.ac.uk/accounts/profile/81/"}, {"name": "Clare Lundon", "profile_url": "https://numbas.mathcentre.ac.uk/accounts/profile/492/"}]}