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Find the Approximate Area of an Irregular Lamina of Which Boundary Line is Drawn on the Graph Paper Shown in Fig. 1.16. Below. - Physics

Short Note

Find the approximate area of an irregular lamina of which boundary line is drawn on the graph paper shown in fig. 1.16. below.

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Solution

From figure, the number of complete squares = 11
The number of squares more than half = 9
∴ Total number of squares = 11 + 9 = 20
∴ Area of the 1 square = 1 cm × 1cm = 1 cm2
∴ Area of 20 squares = 20 × 1 cm2 = 20 cm2
∴ Approximate area of irregular lamina = 20 cm2

Concept: Estimate the Area of Irregular Shape Using a Graph Paper
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APPEARS IN

Selina Concise Physics Class 7 ICSE
Chapter 1 Physical Quantities and Measurement
Numericals | Q 5
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