A 120º sector of a circle of radius 21 cm is bent to form a cone. What is the base radius of the cone?
A cylindrical container, closed at both ends, has a radius of 7 cm and a height of 5 cm. Use this information to answer the questions below. What is the volume of the container?
If log\(_{10}\)x = 2.3675 and log\(_{10}\)y = 2.9738, what is the value of x + y, correct to three significant figures
The angle of a sector of a circle is 108 °. If the radius of the circle is 3\(\frac{1}{2}\)cm, find the perimeter of the sector.
In the diagram above, AO is perpendicular to OB. Find x.
