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Questions and Answers
Which of the following shapes has no lines of symmetry?
Which of the following shapes has no lines of symmetry?
- Scalene Triangle (correct)
- Rectangle
- Circle
- Square
What is the total number of faces on a cube?
What is the total number of faces on a cube?
- 6 (correct)
- 12
- 8
- 4
Which number is both a prime number and greater than 50?
Which number is both a prime number and greater than 50?
- 57
- 65
- 61 (correct)
- 53 (correct)
Which of the following 3D shapes has a circular base?
Which of the following 3D shapes has a circular base?
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What is the sum of the prime numbers between 1 and 10?
What is the sum of the prime numbers between 1 and 10?
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Study Notes
Lines of Symmetry
- A shape has a line of symmetry if it can be folded in half so that the two halves match exactly.
- Not all shapes have lines of symmetry.
- A shape with no lines of symmetry cannot be folded in half to match the other half.
Cubes
- A cube is a three-dimensional shape with six square faces.
- All faces of a cube are congruent, which means they are the same size and shape.
Prime Numbers
- A prime number is a whole number greater than 1 that has exactly two factors: 1 and itself.
- Examples of prime numbers include 2, 3, 5, 7, 11, 13, 17, 19, 23, 29, 31, 37, 41, 43, 47, 53, 59, 61, 67, 71, 73, 79, 83, 89, and 97.
Three-Dimensional Shapes
- A three-dimensional shape has length, width, and height.
- Some three-dimensional shapes have a circular base, such as a cone, cylinder, and sphere.
Sum of Prime Numbers
- Prime numbers between 1 and 10 include 2, 3, 5, and 7.
- The sum of these prime numbers is 17.
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