The cone and its net, problem solving
Answers are for parents and teachers.
1
A right triangle with legs 5 cm and 12 cm is spun about the 12 cm leg. What is the cone's base radius in cm?
5
2
A cylinder has volume 150 cm³. What is the volume in cm³ of the cone with the same base and height?
50
3
A circle of area 96 cm² is split into 8 equal sectors. What is the area of 3 sectors in cm²?
36
4
A box has 90 shapes: 1/3 are cylinders and 1/6 are cones. How many other shapes are there?
45
5
54 l flows from a pipe in 6 minutes. How many litres flow in 20 minutes?
180