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Tamil Nadu Board of Secondary EducationSSLC (English Medium) Class 9

Find the T.S.A and L.S.A of the cube whose side is 7.5 cm - Mathematics

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Question

Find the T.S.A and L.S.A of the cube whose side is 7.5 cm

Sum

Solution

7.5 cm

Side of a cube (a) = 7.5 cm

T.S.A of the cube = 6a2 sq.units

= 6 × 7.5 × 7.5 cm2

= 337.5 cm2

L.S.A of the cube = 4a2 sq.units

= 4 × 7.5 × 7.5 sq.cm

= 225 cm2  

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Chapter 7: Mensuration - Exercise 7.2 [Page 257]

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Samacheer Kalvi Mathematics [English] Class 9 TN Board
Chapter 7 Mensuration
Exercise 7.2 | Q 4. (iii) | Page 257
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