The length of an arc of a circle of radius 3.5 cm is  1\(\frac{19}{36}\) cm. Calculate, correct to the nearest degree , the angle substended by the centre of the circle. [Take \(\pi = \frac{22}{7}\)] 

In the diagram, \(\overline{PU}\)/\(\overline{SR}\),  \(\overline{PS}\)/\(\overline{TR}\),  \(\overline{QS}\)/\(\overline{UR}\),  \(\overline{UR}\) = 15cm, \(\overline{SR}\) = 8 cm, \(\overline{PS}\) = 10 cm and area of △SUR = 24 cm\(^2\). Calculate the area of PTRS.

In the diagram, PQR is a circle with center O. If ∠OPQ = 48°, find the value of M.

The pie chart shows the population of men, women, and children in a city. If the population of the city is 1,800,000, how many men are in the city?

The mean of the numbers 15, 21, 17, 26, 18, and 29 is 21. Calculate the standard deviation