Question

Please find the value of t

Answer 1

Answer:

Required Answer:-

Given picture is a Cylinder.

• Where radius r=tcm
• Height =h=7cm
• Volume =84cm^3

As we know that in a Cylinder

${\boxed{\sf Volume ={\pi}r^2h}}$

• Substitute the values

${:}\longrightarrow$$\sf {\dfrac {22}{{\cancel{7}}}}\times t^2\times{\cancel{7}}=84$

${:}\longrightarrow$$\sf 22×t^2=84$

${:}\longrightarrow$$\sf 22t^2=84$

${:}\longrightarrow$$\sf t^2={\dfrac {84}{22}}$

${:}\longrightarrow$$\sf t^2=3.81$

${:}\longrightarrow$$\sf t={\sqrt {3.81}}$

${:}\longrightarrow$$\sf t=1.95$

${:}\longrightarrow$$\sf t=2cm (Approx)$