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L3: Area of General Quadrilateral - Mensuration, Mathematics, CBSE Class 8 Video Lecture

FAQs on L3: Area of General Quadrilateral - Mensuration, Mathematics, CBSE Class 8 Video Lecture

1. What is the formula to find the area of a general quadrilateral?
Ans. The formula to find the area of a general quadrilateral depends on the type of quadrilateral. For example, the formula for the area of a parallelogram is base multiplied by height, while the formula for the area of a trapezium is 1/2 times the sum of the parallel sides multiplied by the height.
2. Can I find the area of a quadrilateral if I only know the lengths of its sides?
Ans. No, knowing only the lengths of the sides is not sufficient to find the area of a general quadrilateral. The area of a quadrilateral can be determined using different methods depending on its type, such as using the base and height, diagonal lengths, or angles and side lengths.
3. How can I find the area of a quadrilateral if I know the lengths of its diagonals?
Ans. If you know the lengths of the diagonals of a quadrilateral, you can use the formula for the area of a quadrilateral using diagonals: Area = 1/2 × d1 × d2, where d1 and d2 are the lengths of the diagonals.
4. Is it possible to find the area of a quadrilateral if I only know the lengths of two sides and one angle?
Ans. Yes, if you know the lengths of two sides and the included angle between them, you can use the formula: Area = 1/2 × a × b × sin(C), where a and b are the lengths of the two sides and C is the included angle.
5. Can I use the same formula to find the area of any quadrilateral?
Ans. No, the formula to find the area of a quadrilateral varies depending on its type. Different types of quadrilaterals have different properties and therefore require different formulas to calculate their area. It is important to identify the type of quadrilateral and use the appropriate formula to find its area.
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