Q.20 - The area of rhombus is 300 cm2. The length of one of the
diagonals is 20 cm. The length of the other diagonal is:
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Step-by-step explanation:
Area of rhombus of diagonals d1 and d2
= 1/2 x d1 x d2 = 300 cm²
= 1/2 x 40 x d2 = 300 cm²
= 20 x d2 = 300 cm²
d2 = 300 ÷ 20 = 15 cm
∴ 15 cm is the length of the other diagonal.
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