Question

$\huge{\fbox{\fbox{\bigstar{\mathfrak{\red{Question}}}}}}$
find the volume lateral surface and total surface area of the cube with each of whose side is
a) 2.5m
b) 7.8 cm
c) 6dm2 cm
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Answer 1

Answer:

Refer above attachment.

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Answer 2

find the volume lateral surface and total surface area of the cube with each of whose side is

a) 2.5m

b) 7.8 cm

c) 6dm2 cm

☢TO FIND➡lateral surface area and total surface area of the cube..☢

**A)HERE

side of a cube(a)=2.5 cm

$\bf\ volume = \: {a}^{3} \\ \\ \bf\ \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: = {2.5}^{3} \\ \\ \bf\ \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: = {15.625 \: m}^{3}$

$\bf\underline{ lateral \: surface \: area = {4a}^{2} }\\ \\ \bf\ \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: = 4 \times {2.5}^{2} \\ \\ \bf\ \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: =4 \times 6.25 \\ \\ \bf\ \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \boxed{=25 {m}^{2}} \\ \\ \bf\underline{ total \: surface \: area = {6a}^{2} }\\ \\ \bf\ \: \: \: \: \: \: \: \: \: \: \: \: \:\: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: = 6 \times {2.5}^{2} \\ \\ \bf\ \: \: \: \: \: \: \: \: \: \: \: \: \:\: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: = 375 {m}^{2}$

B)a=7.8cm

☢volume=>a^3☢

=>(7.8)^3

↪=>474.552 cm^2

lateral surface area➡4a^2

=4×(7.8)^2

= 4×60.84

=↪243.36cm^2

Total surface area➡6a^2

=6×(7.8)2

=6×60.84

↪=365.04cm^2

c)a=6dm^2

☢volume=>a^3☢

=>(6)^3

↪=>36 dm^2

lateral surface area➡4a^2

=4×(6)^2

= 4×36

↪ = 144dm^2

Total surface area➡6a^2

=6×(6)2

=6×36

↪=215dm^2

$\large\boxed{ \fcolorbox{red}{blue}{hope \: it \: help \: you}}$