Which expression gives the area of a trapezium with parallel sides a and b and height h?
A(1/2) × a × b × h
B(1/2) × h × (a + b)
C(1/2) × h × (a × b)
D(1/2) × h + (a + b)
Answer & Solution
Correct answer: B. (1/2) × h × (a + b)
1. Average the two parallel sides: (a + b)/2.
2. Multiply by the distance h between them.
3. Area = (1/2) × h × (a + b).
_Source: NCERT Class 8 Mathematics, Chapter 9 Mensuration, Example 1_
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