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Say whether the following statements are true or false 2.1. 21/2 litres of juice is more than 2,5 litres. 2.2. Volume is measured in square units. 2.3. Indicate and name 2 angles that you can recognise in the interior of the following 2-D shape

Mathematics

ScanSolve AI Answer

Answer

C

Step-by-step solution

5 steps

Here are the solutions to the questions:

Part 1· 3 steps

  • 1.1. The mass of a tennis ball weighs about: A typical tennis ball weighs around 50-60 grams. The correct option is C.

    C. 50 g\boxed{\text{C. 50 g}}
  • 1.2. There are years in a decade. A decade is a period of 10 years. The correct option is D.

    D. 10\boxed{\text{D. 10}}
  • 1.3. A cylinder has faces. A cylinder has a top circular face, a bottom circular face, and one curved lateral face. This makes a total of 3 faces. The correct option is A.

    A. 3\boxed{\text{A. 3}}
  • 1.4. The missing number in 314=9x\frac{3}{14} = \frac{9}{x} is:

  1. Set up the proportion.

    $$
    \frac{3}{14} = \frac{9}{x}
    $$
    
  2. To get from 3 to 9, we multiply by 3.

    So, we multiply 14 by 3 to find xx. x=14×3 x = 14 \times 3

  3. Calculate the value of xx.

    $$
    x = 42
    $$
    The correct option is C.
    $$
    \boxed{\text{C. 42}}
    $$
    
    • 1.5. The kind of transformation shown below is: The image shows a square with an arrow that is turning around a central point. This movement is a rotation. The correct option is C. C. Rotation\boxed{\text{C. Rotation}}

Part 2· 2 steps

  • 2.1. 2122\frac{1}{2} litres of juice is more than 2.5 litres.
  1. Convert the mixed number to a decimal.

    $$
    2\frac{1}{2} = 2 + \frac{1}{2} = 2 + 0.5 = 2.5
    $$
    
  2. Compare the values.

    $$
    2.5 \text{ litres is equal to } 2.5 \text{ litres, not more than.}
    $$
    The statement is **False**.
    
    • 2.2. Volume is measured in square units. Volume is measured in cubic units (e.g., cm3\text{cm}^3, m3\text{m}^3). Square units (e.g., cm2\text{cm}^2, m2\text{m}^2) are used for area. The statement is False.

    • 2.3. Indicate and name 2 angles that you can recognise in the interior of the following 2-D shape: The given shape is a trapezoid. It has four interior angles. Looking at the shape, we can identify:

      • Acute angles (angles less than 90∘90^\circ)
      • Obtuse angles (angles greater than 90∘90^\circ)
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