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

Find the missing values. Height h Parallel side a Parallel side b Area 19 m 16 m 323 sq.m

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Question

Find the missing values.

Height 'h' Parallel side 'a` Parallel side 'b` Area
19 m   16 m 323 sq.m
Sum
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Solution

Given: height ‘h’ = 19 m

Parallel sides b = 16 m

Area of the trapezium = 323 sq.m

`1/2` h(a + b) = 323

`1/2` × h × (a + 16) = 323

a + 16 = `(323 xx 2)/19` = 34

a = 34 – 16 = 18 m

a = 18 m

Tabulating the results we get

Height 'h' Parallel side 'a` Parallel side 'b` Area
19 m 18 m 16 m 323 sq.m
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Chapter 2: Measurements - Exercise 2.3 [Page 47]

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Samacheer Kalvi Mathematics - Term 1 [English] Class 7 TN Board
Chapter 2 Measurements
Exercise 2.3 | Q 1. (iii) | Page 47

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