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Tamil Nadu Board of Secondary EducationSSLC (English Medium) Class 7

The area of a rhombus is 100 sq.cm and length of one of its diagonals is 8 cm. Find the length of the other diagonal - Mathematics

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Question

The area of a rhombus is 100 sq.cm and length of one of its diagonals is 8 cm. Find the length of the other diagonal

Sum

Solution

Given the length of one diagonal d1 = 8 cm

Area of the rhombus = 100 sq.cm

`1/2` (d1 × d2) = 100

`1/2 xx 8 xx "d"_2` = 100 

8 × d2 = 100 × 2

d2 = `(100 xx 2)/8`

= 25 cm

Length of the other diagonal d2 = 25 cm

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Chapter 2: Measurements - Exercise 2.2 [Page 43]

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Samacheer Kalvi Mathematics - Term 1 [English] Class 7 TN Board
Chapter 2 Measurements
Exercise 2.2 | Q 4 | Page 43
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