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Questions and Answers
What is the formula to calculate the area of a trapezium?
What is the formula to calculate the area of a trapezium?
- (sum of parallel sides) × height
- (difference of parallel sides) × height
- 1/2 × (difference of parallel sides) × height
- 1/2 × (sum of parallel sides) × height (correct)
In a trapezium, if one of the parallel sides is 5 cm, the other parallel side is 7 cm, and the height is 4 cm, what is the area of the trapezium?
In a trapezium, if one of the parallel sides is 5 cm, the other parallel side is 7 cm, and the height is 4 cm, what is the area of the trapezium?
- 20 sq cm (correct)
- 16 sq cm
- 18 sq cm
- 24 sq cm
If the area of a trapezium is 45 sq units, one of the parallel sides is 10 units, and the height is 9 units, what is the length of the other parallel side?
If the area of a trapezium is 45 sq units, one of the parallel sides is 10 units, and the height is 9 units, what is the length of the other parallel side?
- 4 units
- 6 units
- 3 units
- 5 units (correct)
What is the formula to calculate the area of a trapezium?
What is the formula to calculate the area of a trapezium?
If the area of a trapezium is 45 sq units, one of the parallel sides is 10 units, and the height is 9 units, what is the length of the other parallel side?
If the area of a trapezium is 45 sq units, one of the parallel sides is 10 units, and the height is 9 units, what is the length of the other parallel side?
In a trapezium, if one of the parallel sides is 5 cm, the other parallel side is 7 cm, and the height is 4 cm, what is the area of the trapezium?
In a trapezium, if one of the parallel sides is 5 cm, the other parallel side is 7 cm, and the height is 4 cm, what is the area of the trapezium?
Flashcards
Area of a Trapezium
Area of a Trapezium
The area of a trapezium can be calculated by multiplying half the sum of the lengths of the parallel sides by the height.
Calculating the length of a parallel side
Calculating the length of a parallel side
The length of the other parallel side can be found by rearranging the formula for the area of a trapezium.
Trapezium Area Example
Trapezium Area Example
The area of a trapezium is 20 square centimeters.
Trapezium Area Formula
Trapezium Area Formula
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Finding the Length of a Parallel Side
Finding the Length of a Parallel Side
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Trapezium Area Example
Trapezium Area Example
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Study Notes
Trapezium Properties
- The area of a trapezium can be calculated using the formula:
(a + b) / 2 × h, whereaandbare the lengths of the parallel sides, andhis the height.
Example 1
- If one parallel side is 5 cm, the other parallel side is 7 cm, and the height is 4 cm, the area of the trapezium can be calculated using the formula.
Example 2
- If the area of a trapezium is 45 sq units, one of the parallel sides is 10 units, and the height is 9 units, the length of the other parallel side can be calculated using the formula.
Key Formula
- The area of a trapezium formula is:
(a + b) / 2 × h, whereaandbare the lengths of the parallel sides, andhis the height.
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