// Numbas version: finer_feedback_settings
{"name": "Mensuration: Area & Circumference of Circle (with r)", "extensions": [], "custom_part_types": [], "resources": [["question-resources/Square.jpg", "/srv/numbas/media/question-resources/Square.jpg"], ["question-resources/Square_1.jpg", "/srv/numbas/media/question-resources/Square_1.jpg"], ["question-resources/calc.jpg", "/srv/numbas/media/question-resources/calc.jpg"], ["question-resources/circle1.jpg", "/srv/numbas/media/question-resources/circle1.jpg"], ["question-resources/circle2.jpg", "/srv/numbas/media/question-resources/circle2.jpg"]], "navigation": {"allowregen": true, "showfrontpage": false, "preventleave": false, "typeendtoleave": false}, "question_groups": [{"pickingStrategy": "all-ordered", "questions": [{"functions": {}, "ungrouped_variables": ["a", "circum", "area"], "name": "Mensuration: Area & Circumference of Circle (with r)", "tags": ["area", "circle", "circumference", "mensuration", "radius"], "advice": "<p>Recall that for a circle with radius $r$, the area, $A$, and circumference, $C$, are given by the formulae</p>\n<p>$A = \\pi r^2$, $C= 2 \\pi r$</p>\n<p>For a comprehensive list of the formulas for the perimeters, areas and volumes of 2-d and 3-d shapes see <a href=\"http://www.sciencehq.com/math-formulas/mensuration-formulas.html\">http://www.sciencehq.com/math-formulas/mensuration-formulas.html</a></p>", "rulesets": {}, "parts": [{"prompt": "<table align=\"center\" border=\"0\" cellpadding=\"1\" cellspacing=\"1\">\n<tbody>\n<tr>\n<td></td>\n<td><img src=\"resources/question-resources/circle2.jpg\"/>&nbsp;</td>\n</tr>\n<tr>\n<td>&nbsp;</td>\n<td style=\"text-align: left;\"><span style=\"text-align: start;\">radius = $\\var{a}$cm</span></td>\n</tr>\n</tbody>\n</table>\n<p><strong>Give your answers to 2 decimal places. Use either the $\\pi$ button on your calculator or the value $ \\pi = 3.142$.<br/></strong></p>\n<p>The area of this circle is [[0]]$cm^2$.</p>\n<p>The circumference of this circle is [[1]]$cm$</p>", "variableReplacements": [], "variableReplacementStrategy": "originalfirst", "gaps": [{"precisionType": "dp", "precisionMessage": "<p>You have not rounded your answer correctly.</p>", "allowFractions": false, "variableReplacements": [], "precision": "2", "maxValue": "area", "minValue": "area", "variableReplacementStrategy": "originalfirst", "strictPrecision": false, "correctAnswerFraction": false, "showCorrectAnswer": true, "precisionPartialCredit": "0", "scripts": {}, "marks": 1, "type": "numberentry", "showPrecisionHint": false}, {"precisionType": "dp", "precisionMessage": "<p>You have not rounded your answer correctly.</p>", "allowFractions": false, "variableReplacements": [], "precision": "2", "maxValue": "circum", "minValue": "circum", "variableReplacementStrategy": "originalfirst", "strictPrecision": false, "correctAnswerFraction": false, "showCorrectAnswer": true, "precisionPartialCredit": 0, "scripts": {}, "marks": 1, "type": "numberentry", "showPrecisionHint": false}], "showCorrectAnswer": true, "scripts": {}, "marks": 0, "type": "gapfill"}], "extensions": [], "statement": "<p>Diagram is NOT to scale.</p>", "variable_groups": [], "variablesTest": {"maxRuns": 100, "condition": ""}, "preamble": {"css": "", "js": ""}, "variables": {"a": {"definition": "random(1..15)", "templateType": "anything", "group": "Ungrouped variables", "name": "a", "description": ""}, "circum": {"definition": "2*pi*a", "templateType": "anything", "group": "Ungrouped variables", "name": "circum", "description": ""}, "area": {"definition": "pi*a^2", "templateType": "anything", "group": "Ungrouped variables", "name": "area", "description": ""}}, "metadata": {"description": "<p>Calculation of area &amp; circumference of circle, given its radiua.</p>", "licence": "Creative Commons Attribution 4.0 International"}, "type": "question", "showQuestionGroupNames": false, "question_groups": [{"name": "", "pickingStrategy": "all-ordered", "pickQuestions": 0, "questions": []}], "contributors": [{"name": "Lois Rollings", "profile_url": "https://numbas.mathcentre.ac.uk/accounts/profile/326/"}]}]}], "contributors": [{"name": "Lois Rollings", "profile_url": "https://numbas.mathcentre.ac.uk/accounts/profile/326/"}]}