An arc of length 10.8 cm subtends an angle of 1.2 radians...
An arc of length 10.8 cm subtends an angle of 1.2 radians at the centre of a circle. Calculate the radius of the circle.
12.6 cm
12.0 cm
9.6 cm
9.0 cm
Correct answer is D
Length of arc (in radians) = \(r \theta\)
\(10.8 = 1.2r\)
\(r = \frac{10.8}{1.2} = 9.0 cm\)
Simplify \(\frac{\sqrt{3}}{\sqrt{3} -1} + \frac{\sqrt{3}}{\sqrt{3} + 1}\)...
Differentiate \(\frac{x}{x + 1}\) with respect to x...
If \(P = \begin{pmatrix} 1 & 2 \\ 5 & 1 \end{pmatrix}\) and \(Q = \begin{pmatrix} 0 & 1 ...
A body of mass 15kg is placed on a smooth plane which is inclined at&n...