Question

(1) Find the volume of cubes whose side is 1.25cm​

Answer 1

Answer:

Volume of Cube = a³

= (1.25)³

= 1.25 × 1.25× 1.25

= 0.390625 cm³

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Answer 2

Given : The Sides of cube is 1.25 cm .

Exigency To Find : Volume of Cube .

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❍ Formula for Finding Volume of Cube is given by :

$\dag\frak{\underline {As,\:We\:know\:that\::}}$

$\star\:\:\boxed {\sf{ Volume _{(Cube)} = a \times a \times a\:or\:a^3 \:\:sq.units \:}}$

Where,

• a is the Side of Cube in cm .

⠀⠀⠀⠀⠀⠀$\underline {\mathcal{\star\:Now \: By \: Substituting \: the \: known \: Values \::}}$

$:\implies \sf { Volume _{(Cube)} = 1.25 \times 1.25 \times 1.25\:}\\\\:\implies \sf { Volume _{(Cube)} = 1.5625 \times 1.25\:}\\\\\underline {\boxed{\pink{ \mathrm {  Volume _{(Cube)} = 1.953125\: cm^3}}}}\:\bf{\bigstar}$

Therefore,

⠀⠀⠀⠀⠀$\therefore {\underline{ \mathrm {  Hence,\:The\:Volume \:of\:Cube \:is\:\bf{1.953125\: cm^3}}}}$

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$\large {\boxed{\sf{\mid{\overline {\underline {\star More\:To\:know\::}}}\mid}}}$

• $\begin{gathered}\boxed{\begin {array}{cc}\\ \dag\quad \Large\underline{\bf Formulas\:of\:Areas:-}\\ \\ \star\sf Square=(side)^2\\ \\ \star\sf Rectangle=Length\times Breadth \\\\ \star\sf Triangle=\dfrac{1}{2}\times Breadth\times Height \\\\ \star \sf Scalene\triangle=\sqrt {s (s-a)(s-b)(s-c)}\\ \\ \star \sf Rhombus =\dfrac {1}{2}\times d_1\times d_2 \\\\ \star\sf Rhombus =\:\dfrac {1}{2}p\sqrt {4a^2-p^2}\\ \\ \star\sf Parallelogram =Breadth\times Height\\\\ \star\sf Trapezium =\dfrac {1}{2}(a+b)\times Height \\ \\ \star\sf Equilateral\:Triangle=\dfrac {\sqrt{3}}{4}(side)^2\end {array}}\end{gathered}$

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