alleryThe diagonals of a rhombus measure 7.5 cm and 12 cm. What is its area?
A45 cm2
B90 cm2
C19.5 cm2
D22.5 cm2
Answer & Solution
Correct answer: A. 45 cm2
1. Area = (1/2) × d1 × d2.
2. (1/2) × 7.5 × 12 = 45 cm2.
3. 90 forgets the half and 19.5 adds the diagonals.
_Source: NCERT Class 8 Mathematics, Chapter 9 Mensuration, Exercise 9.1_
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