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Volume And Surface Area Of A Sphere Worksheet
Help your students prepare for their Maths GCSE with this free volume and surface area of a sphere worksheet of 26 questions and answers
- Section 1 of the volume and surface area of a sphere worksheet contains 18 skills-based volume and surface area of a sphere questions, in 3 groups to support differentiation
- Section 2 contains 5 applied volume and surface area of a sphere questions with a mix of worded problems and deeper problem solving questions
- Section 3 contains 3 foundation and higher level GCSE exam style volume and surface area of a sphere questions
- Answers and a mark scheme for all volume and surface area of a sphere questions are provided
- Questions follow variation theory with plenty of opportunities for students to work independently at their own level
- All questions created by fully qualified expert secondary maths teachers
- Suitable for GCSE maths revision for AQA, OCR and Edexcel exam boards
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Volume and surface area of a sphere at a glance
The volume of a 3D shape is the amount of space enclosed inside it. The surface area is the total area of all of the faces that make up its surface.
To calculate the volume of a sphere, we use the formula 43r3 , where r is the radius of the sphere. For example, if the radius of a sphere is 4cm, we would substitute the value 4 in for r. This can be input into a calculator and the answer rounded to a given number of decimal places or significant figures. When calculating the volume of the sphere, students can be asked to write their answer as a multiple of , requiring them to simplify the expression as far as possible, but to leave in their answer. This can sometimes result in the answer involving integers or fractions.
To calculate the surface area of a sphere, we use the formula 4r2 . For example, for a sphere with radius 4cm as above, we substitute 4 for r in the formula to calculate the surface area of the sphere. Again, students may be asked to leave their answer as a multiple of .
These skills may be applied to compound 3D shapes – for example, calculating the surface area of a hemisphere placed on top of a cylinder. In this case, we calculate the curved surface area of the hemisphere (half of the sphere), the curved surface area of the cylinder, and the area of the circle on the base. To find the total surface area, we then add the three amounts together, and finally round to a suitable number of decimal places.
Looking forward, students can then progress to additional 3D shapes worksheets and more geometry worksheets for example an angles in polygons worksheet or how to calculate volume worksheet.
For more teaching and learning support on Geometry our GCSE maths lessons provide step by step support for all GCSE maths concepts.
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