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The Area of a Rhombus is 240 Cm2 and One of the Diagonal is 16 Cm. Find Another Diagonal. - Mathematics

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प्रश्न

The area of a rhombus is 240 cm2 and one of the diagonal is 16 cm. Find another diagonal.

योग
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उत्तर

Given: 
Area of the rhombus = 240 cm
Length of one of its diagonals = 16 cm
We know that if the diagonals of a rhombus are `d_1` and `d_2` , then the area of the rhombus is given by: 
Area \[= \frac{1}{2}( d_1 \times d_2 )\]
Putting the given values: 
\[240 = \frac{1}{2}(16 \times d_2 )\]
\[240 \times 2 = 16 \times d_2 \]
This can be written as follows: 
\[16 \times d_2 = 480\]
\[ d_2 = \frac{480}{16}\]
\[ d_2 = 30 cm\]
Thus, the length of the other diagonal of the rhombus is 30 cm.

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अध्याय 20: Mensuration - I (Area of a Trapezium and a Polygon) - Exercise 20.1 [पृष्ठ १४]

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आरडी शर्मा Mathematics [English] Class 8
अध्याय 20 Mensuration - I (Area of a Trapezium and a Polygon)
Exercise 20.1 | Q 8 | पृष्ठ १४

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