In the diagram, O is the centre of the circle and PQ is a diameter. Triangle RSO is an equilateral triangle of side 4cm. Find the area of the shaded region
Evaluate \(\frac{(3.2)^2 - (4.8)^2}{3.2 + 4.8}\)
Find the product of 0.0409 and 0.0021 leaving your answer in the standard form
