Zoldyck: A solid consist of a cylinder of a base radius of 2.5cm and a height of 8cm, with its base place on top of a cuboid with dimensions 11cm by 7 cm by 3cm.
1. What is the volume?
2. What is the total surface area?
The more normal name for a cuboid is a rectangular prism.
Do you know how to find the volume of a rectangular prism?
Do you know how to find the volume of a cylinder?
If you do then just add them together and you will have the volume.
For surface area I will assume that both shapes are solid. eg there is a top one the cylinder, and a bottom on the cuboid.
So all you have to do is find the area of each of the 6 sides of the cuboid and the curved surface of the cylinder and the lid of the cylinder.
You need to think about the bottom of the cylinder. Is this area included? Has it already been included with the cuboid? You will need to think about this.
I would like you to think about what I have written and then ask more specific questions.
I am happy to help more but you just need to think first. Maybe put a toilet roll on top of a tissue box and think about what you have.
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