 |  Elementary Shapes (2-D and 3-D) 24 Flashcards |  Start |
 | What is the sum of the interior angles of a triangle? |  Card: 1 / 24 |
| The sum of the interior angles of a triangle is always 180°. | Card: 2 / 24 |
| A cube has how many faces, edges, and vertices? | Card: 3 / 24 |
| A cube has 6 faces, 12 edges, and 8 vertices. | Card: 4 / 24 |
| Fill in the blank: The circumference of a circle is calculated using the formula ___, where r is the radius. | Card: 5 / 24 |
| 2πr | Card: 6 / 24 |
| True or False: A rectangle is a type of parallelogram. | Card: 7 / 24 |
| True | Card: 8 / 24 |
| What is the volume of a cuboid with length 5 units, width 3 units, and height 2 units? | Card: 9 / 24 |
| The volume is 30 cubic units, calculated as: | Card: 10 / 24 |
| Fill in the blank: An obtuse angle is greater than 90° but less than ___ degrees. | Card: 11 / 24 |
| 180 | Card: 12 / 24 |
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| How many sides does a hexagon have? | Card: 13 / 24 |
| A hexagon has 6 sides. | Card: 14 / 24 |
| What is the area of a circle with a radius of 4 units? | Card: 15 / 24 |
| The area is 16π square units, calculated using the formula πr², where r is 4. | Card: 16 / 24 |
| True or False: A line segment can extend infinitely in both directions. | Card: 17 / 24 |
| False. A line segment has two endpoints and does not extend infinitely. | Card: 18 / 24 |
| What is the relationship between a square and a rhombus? | Card: 19 / 24 |
| A square is a special type of rhombus where all angles are 90°. | Card: 20 / 24 |
| Fill in the blank: The number of edges in a cylinder is ___. | Card: 21 / 24 |
| 2 | Card: 22 / 24 |
| What is the surface area of a cube with a side length of 3 units? | Card: 23 / 24 |
| The surface area is 54 square units, | Card: 24 / 24 |
| Completed! Keep practicing to master all of them. |  Restart |
