An arc of a circle subtends an angle of 30° on t...
An arc of a circle subtends an angle of 30° on the circumference of a circle of radius 21cm. Find the length of the arc.
11cm
22cm
44cm
66cm
Correct answer is B
No explanation has been provided for this answer.
The area of a square is 144 sq cm. Find the length of its diagonal ...
If y = 3 cos(x/3), find dy/dx when x = (3π/2) ...
Age in years 7 8 9 10 11 No of pupils 4 13 30 44 9 The table above shows...
If \(y \propto \frac{1}{x^2}\) and x = 3 when y = 4, find y when x = 2....
Find the positive value of x if the standard deviation of the numbers 1, x + 1, 2x + 1 is 6 ...
y is inversely proportional to x and y is 6 when x = 7. Find the constant of the variation ...
The total surface area of a hemispher is 75\(\pi cm^2\). Find the radius....