Geometry 3d Shapes Hard — Set 84

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        "operation": "geometry",
        "subject": "arithmetic",
        "difficulty": "hard",
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        "problems": [
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                "id": 1,
                "type": "geometry",
                "subType": "identify-shapes",
                "shape": "square",
                "question": "What is the name of a shape with 4 sides?",
                "answer": "rectangle",
                "correctAnswer": "rectangle",
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                "id": 2,
                "type": "geometry",
                "subType": "count-sides",
                "shape": "octagon",
                "question": "How many sides does a octagon have?",
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                "correctAnswer": "8",
                "difficulty": "hard"
            },
            {
                "id": 3,
                "type": "geometry",
                "subType": "area",
                "shape": "pentagon",
                "question": "What is the area of a rectangle with length 27 and width 31?",
                "answer": 837,
                "correctAnswer": "837",
                "difficulty": "hard"
            },
            {
                "id": 4,
                "type": "geometry",
                "subType": "perimeter",
                "shape": "circle",
                "question": "What is the perimeter (circumference) of a circle with radius 9? (use π ≈ 3.14)",
                "answer": 56.55,
                "correctAnswer": "56.55",
                "difficulty": "hard"
            },
            {
                "id": 5,
                "type": "geometry",
                "subType": "perimeter",
                "shape": "rectangle",
                "question": "What is the perimeter of a rectangle with length 43 and width 26?",
                "answer": 138,
                "correctAnswer": "138",
                "difficulty": "hard"
            },
            {
                "id": 6,
                "type": "geometry",
                "subType": "count-sides",
                "shape": "circle",
                "question": "How many sides does a circle have?",
                "answer": 0,
                "correctAnswer": "0",
                "difficulty": "hard"
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            {
                "id": 8,
                "type": "geometry",
                "subType": "identify-shapes",
                "shape": "octagon",
                "question": "What is the name of a shape with 6 sides?",
                "answer": "hexagon",
                "correctAnswer": "hexagon",
                "difficulty": "hard"
            },
            {
                "id": 9,
                "type": "geometry",
                "subType": "area",
                "shape": "rectangle",
                "question": "What is the area of a rectangle with length 31 and width 34?",
                "answer": 1054,
                "correctAnswer": "1054",
                "difficulty": "hard"
            },
            {
                "id": 10,
                "type": "geometry",
                "subType": "count-sides",
                "shape": "square",
                "question": "How many sides does a square have?",
                "answer": 4,
                "correctAnswer": "4",
                "difficulty": "hard"
            },
            {
                "id": 11,
                "type": "geometry",
                "subType": "count-sides",
                "shape": "triangle",
                "question": "How many sides does a triangle have?",
                "answer": 3,
                "correctAnswer": "3",
                "difficulty": "hard"
            },
            {
                "id": 12,
                "type": "geometry",
                "subType": "count-sides",
                "shape": "rectangle",
                "question": "How many sides does a rectangle have?",
                "answer": 4,
                "correctAnswer": "4",
                "difficulty": "hard"
            },
            {
                "id": 14,
                "type": "geometry",
                "subType": "area",
                "shape": "square",
                "question": "What is the area of a square with side 17?",
                "answer": 289,
                "correctAnswer": "289",
                "difficulty": "hard"
            },
            {
                "id": 15,
                "type": "geometry",
                "subType": "count-sides",
                "shape": "pentagon",
                "question": "How many sides does a pentagon have?",
                "answer": 5,
                "correctAnswer": "5",
                "difficulty": "hard"
            },
            {
                "id": 17,
                "type": "geometry",
                "subType": "perimeter",
                "shape": "octagon",
                "question": "What is the perimeter of a octagon with each side = 39?",
                "answer": 312,
                "correctAnswer": "312",
                "difficulty": "hard"
            },
            {
                "id": 19,
                "type": "geometry",
                "subType": "identify-shapes",
                "shape": "pentagon",
                "question": "What is the name of a shape with 3 sides?",
                "answer": "triangle",
                "correctAnswer": "triangle",
                "difficulty": "hard"
            },
            {
                "id": 20,
                "type": "geometry",
                "subType": "perimeter",
                "shape": "square",
                "question": "What is the perimeter of a square with each side = 27?",
                "answer": 108,
                "correctAnswer": "108",
                "difficulty": "hard"
            }
        ],
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    "_archetype": "form-exercise",
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