What is the total surface area of a closed cylinder of he...
What is the total surface area of a closed cylinder of height 10cm and diameter 7cm? [Take \(\pi = \frac{22}{7}\)]
77cm2
227cm2
297cm2
374cm2
Correct answer is C
T.S.A of s closed cylinder = \(2\pi r(r+h)\\
=\frac{2}{1}\times \frac{22}{7} \times \frac{7}{2}\left(\frac{7}{2}+\frac{10}{1}\right)=\frac{22}{1}\left(\frac{27}{2}\right)=27\times 11=297cm^2\)
If 3\(^y\) = 243, find the value of y....
If y = 2x - sin2x, find dy/dx when x = π/4 ...
In the diagram above, |PQ| = |PR| = |RS| and ∠RPS = 32°. Find the value of ∠QPR ...
Subtract (-y + 3x + 5z) from (4y - x - 2z)...
How many sides has a regular polygon whose interior angle is 135°? ...
Simplify \(\frac{(a^2 - \frac{1}{a}) (a^{\frac{4}{3}} + a^{\frac{2}{3}})}{a^2 - \frac{1}{a}^2}\)...