Vaughn Henry
05/20/2023 · Junior High School
what is the volume of a trapezium? what is the valume of a trapezoidal prism? what is the difference between the valume formula of a trapizum and a trapezaidal prism?
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To clarify the terms and provide accurate information:
1. **Volume of a Trapezium**: A trapezium (or trapezoid in American English) is a two-dimensional shape and does not have a volume. Instead, it has an area. The area \( A \) of a trapezium can be calculated using the formula:
\[
A = \frac{1}{2} \times (b_1 + b_2) \times h
\]
where \( b_1 \) and \( b_2 \) are the lengths of the two parallel sides (bases), and \( h \) is the height (the perpendicular distance between the bases).
2. **Volume of a Trapezoidal Prism**: A trapezoidal prism (or trapezoidal box) is a three-dimensional shape that has trapeziums as its top and bottom faces. The volume \( V \) of a trapezoidal prism can be calculated using the formula:
\[
V = A \times l
\]
where \( A \) is the area of the trapezium (calculated using the formula above) and \( l \) is the length (or height) of the prism.
3. **Difference Between the Volume Formulas**: The key difference is that the trapezium is a two-dimensional shape and has an area, while the trapezoidal prism is a three-dimensional shape and has a volume. The volume formula for the trapezoidal prism incorporates the area of the trapezium and extends it into the third dimension by multiplying by the length of the prism.
In summary:
- A trapezium has an area, not a volume.
- A trapezoidal prism has a volume calculated from the area of the trapezium multiplied by its length.
Quick Answer
A trapezium has an area, not volume. The volume of a trapezoidal prism is the area of the trapezium times its length.
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