Geometry 3d Shapes Hard — Set 26

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        "subject": "arithmetic",
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        "problems": [
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                "id": 1,
                "type": "geometry",
                "subType": "count-sides",
                "shape": "rectangle",
                "question": "How many sides does a rectangle have?",
                "answer": 4,
                "correctAnswer": "4",
                "difficulty": "hard"
            },
            {
                "id": 2,
                "type": "geometry",
                "subType": "area",
                "shape": "square",
                "question": "What is the area of a square with side 20?",
                "answer": 400,
                "correctAnswer": "400",
                "difficulty": "hard"
            },
            {
                "id": 3,
                "type": "geometry",
                "subType": "count-sides",
                "shape": "square",
                "question": "How many sides does a square have?",
                "answer": 4,
                "correctAnswer": "4",
                "difficulty": "hard"
            },
            {
                "id": 4,
                "type": "geometry",
                "subType": "identify-shapes",
                "shape": "circle",
                "question": "What is the name of a shape with 8 sides?",
                "answer": "octagon",
                "correctAnswer": "octagon",
                "difficulty": "hard"
            },
            {
                "id": 8,
                "type": "geometry",
                "subType": "count-sides",
                "shape": "triangle",
                "question": "How many sides does a triangle have?",
                "answer": 3,
                "correctAnswer": "3",
                "difficulty": "hard"
            },
            {
                "id": 9,
                "type": "geometry",
                "subType": "area",
                "shape": "circle",
                "question": "What is the area of a circle with radius 4? (use π ≈ 3.14)",
                "answer": 50.27,
                "correctAnswer": "50.27",
                "difficulty": "hard"
            },
            {
                "id": 10,
                "type": "geometry",
                "subType": "identify-shapes",
                "shape": "circle",
                "question": "What is the name of a shape with 3 sides?",
                "answer": "triangle",
                "correctAnswer": "triangle",
                "difficulty": "hard"
            },
            {
                "id": 11,
                "type": "geometry",
                "subType": "count-sides",
                "shape": "pentagon",
                "question": "How many sides does a pentagon have?",
                "answer": 5,
                "correctAnswer": "5",
                "difficulty": "hard"
            },
            {
                "id": 14,
                "type": "geometry",
                "subType": "perimeter",
                "shape": "octagon",
                "question": "What is the perimeter of a octagon with each side = 49?",
                "answer": 392,
                "correctAnswer": "392",
                "difficulty": "hard"
            },
            {
                "id": 15,
                "type": "geometry",
                "subType": "area",
                "shape": "triangle",
                "question": "What is the area of a triangle with base 35 and height 7?",
                "answer": 122.5,
                "correctAnswer": "122.5",
                "difficulty": "hard"
            },
            {
                "id": 16,
                "type": "geometry",
                "subType": "area",
                "shape": "circle",
                "question": "What is the area of a circle with radius 12? (use π ≈ 3.14)",
                "answer": 452.39,
                "correctAnswer": "452.39",
                "difficulty": "hard"
            },
            {
                "id": 17,
                "type": "geometry",
                "subType": "identify-shapes",
                "shape": "rectangle",
                "question": "What is the name of a shape with 5 sides?",
                "answer": "pentagon",
                "correctAnswer": "pentagon",
                "difficulty": "hard"
            },
            {
                "id": 18,
                "type": "geometry",
                "subType": "identify-shapes",
                "shape": "pentagon",
                "question": "What is the name of a shape with 4 sides?",
                "answer": "rectangle",
                "correctAnswer": "rectangle",
                "difficulty": "hard"
            },
            {
                "id": 19,
                "type": "geometry",
                "subType": "perimeter",
                "shape": "triangle",
                "question": "What is the perimeter of a triangle with each side = 8?",
                "answer": 24,
                "correctAnswer": "24",
                "difficulty": "hard"
            }
        ],
        "layout": {
            "columns": 2,
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    "_archetype": "form-exercise",
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