6 Questions
What is the formula to calculate the area of a trapezium?
1/2 × (sum of parallel sides) × height
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
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?
5 units
What is the formula to calculate the area of a trapezium?
A = 1/2 * (a + b) * h
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?
12 units
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?
16 sq cm
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.
Test your knowledge of trapeziums with this quiz! Learn the formula to calculate the area of a trapezium and apply it to solve different problems. Practice finding the area when given the parallel sides and height, and also determine the length of one parallel side when the area and height are known.
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