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 Shapes and Patterns 30 Flashcards |
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The area of a square with a side length of 5 cm is ___ cm². |
Card: 1 / 30 |
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25 cm², calculated as side length squared, so 5² = 25. |
Card: 2 / 30 |
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True or False: A triangle with sides measuring 3 cm, 4 cm, and 5 cm is a scalene triangle. |
Card: 3 / 30 |
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True, because all sides are of different lengths. |
Card: 4 / 30 |
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If the circumference of a circle is 31.4 cm, what is the radius? |
Card: 5 / 30 |
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The radius is 5 cm, calculated by using the formula C = 2πr, so r = C/(2π) = 31.4/(2π). |
Card: 6 / 30 |
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Fill in the blank: A rectangle has ___ sides, with opposite sides being equal in length. |
Card: 7 / 30 |
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4 |
Card: 8 / 30 |
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What is the sum of the angles in a triangle? |
Card: 9 / 30 |
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180°, which is true for all triangles. |
Card: 10 / 30 |
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The volume of a cube with a side length of 3 cm is ___ cm³. |
Card: 11 / 30 |
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27 cm³, calculated as side length cubed, so 3³ = 27. |
Card: 12 / 30 |
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If the area of a rectangle is 48 cm² and its length is 8 cm, what is the width? |
Card: 13 / 30 |
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6 cm, calculated using the formula area = length × width, so width = area/length = 48/8. |
Card: 14 / 30 |
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True or False: An equilateral triangle can have angles measuring 70°, 70°, and 40°. |
Card: 15 / 30 |
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False, because all angles in an equilateral triangle must be equal, each measuring 60°. |
Card: 16 / 30 |
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If a pentagon has 5 sides, how many degrees are in the sum of its interior angles? |
Card: 17 / 30 |
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540°, calculated using the formula (n-2) × 180°, where n is the number of sides. |
Card: 18 / 30 |
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Fill in the blank: The formula for the area of a circle is ___. |
Card: 19 / 30 |
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Πr², where r is the radius. |
Card: 20 / 30 |
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What is the perimeter of a square with a side length of 4 cm? |
Card: 21 / 30 |
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16 cm, calculated as 4 times the side length, so 4 × 4 = 16. |
Card: 22 / 30 |
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If you have a triangle with two sides measuring 5 cm and 12 cm, what is the maximum length of the third side? |
Card: 23 / 30 |
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16 cm, according to the triangle inequality theorem, where the sum of any two sides must be greater than the third. |
Card: 24 / 30 |
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True or False: The diagonals of a rectangle are always equal in length. |
Card: 25 / 30 |
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True, because in a rectangle, opposite sides are equal and the diagonals bisect each other. |
Card: 26 / 30 |
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What is the area of a triangle with a base of 10 cm and a height of 5 cm? |
Card: 27 / 30 |
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25 cm², calculated using the formula area = (base × height)/2. |
Card: 28 / 30 |
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A cube has a surface area of 6x² square units. What is the length of one side of the cube? |
Card: 29 / 30 |
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The side length is x units.
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Card: 30 / 30 |
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Completed! Keep practicing to master all of them. |
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